                               T.C. Memo. 2019-16



                         UNITED STATES TAX COURT



                   MARC L. MANCINI, Petitioner v.
           COMMISSIONER OF INTERNAL REVENUE, Respondent



      Docket No. 16975-13.                         Filed March 4, 2019.



      Yosef Yisroel Manela, for petitioner.

      Paulmikell A. Fabian and Sarah A. Herson, for respondent.



            MEMORANDUM FINDINGS OF FACT AND OPINION


      HOLMES, Judge: Marc Mancini claims to have lost millions of dollars

gambling. He says the normal limits on gambling-loss deductions shouldn’t apply

to him because his gambling was a side effect of a prescription drug that over a

short time caused him to lose the ability to control his impulses. The
                                        -2-

[*2] Commissioner says there’s no proof of that, and even if there is, Mancini

hasn’t substantiated the amounts of his losses or shown that they qualify as

casualty losses.

                               FINDINGS OF FACT

A.      Background

        Marc Mancini worked hard and studied hard for many years. He made good

money, saved carefully, and strategically bought Los Angeles real estate. He

gambled occasionally, but only small amounts, and never more than $100 at a

time.

        In 2004 Mancini was diagnosed with Parkinson’s disease. He received

treatment from Dr. Mark Lew, a prominent neurologist and professor at the USC

School of Medicine. In 2006 Dr. Lew prescribed Pramipexole (the generic name

for Mirapex), a drug Dr. Lew had given patients in clinical trials even before it had

received Food and Drug Administration (FDA) approval. Dr. Lew initially

prescribed a very small dose for Mancini--0.375 mg a day. He gradually increased

Mancini’s dose, which by 2008 was 4.5 mg a day. The medicine worked, and

Mancini’s symptoms improved significantly.

        But in 2008 Mancini started doing odd things. He vacuumed a lot and

became compulsive about his cleanliness. He spent a week researching and
                                         -3-

[*3] obsessing over which mattress to buy. He started falling asleep suddenly

while driving. He had suicidal thoughts. And he started gambling--a lot.

      At first it was just lottery tickets. Then he started going to casinos--

especially the Venetian in Las Vegas and Morongo near Palm Springs. Then he

moved to online gambling. That’s where he says he suffered his biggest losses,

though he didn’t keep logs of his gambling activity. In 2008 Mancini told Dr.

Lew that he had become still more compulsive and was gambling, but he

minimized the extent of his gambling and said he had it under control.

      This was not true. Over the next two years gambling wiped out all of his

bank accounts and all but $10,000 of his retirement savings. In 2009 he also

started selling his real estate for less than fair market value. He first sold a house

he owned in Manhattan Beach to its tenants for a quick $995,000, when he

believed the true value was closer to $1.2 million. Mancini says he liked the

tenants but thinks he would’ve put the house on the open market if he’d been in

his right mind. He also sold property in Massachusetts that he thought was worth

$300,000 for only $90,000. He explained that, with this sale, he felt indebted to

the buyer who had cared for his mother. He used the proceeds from both of these

sales to pay gambling debts.
                                        -4-

[*4] In 2010 Mancini’s wife and daughter stepped in. They visited Dr. Lew and

told him that Mancini had gambled away nearly everything he had. This surprised

Dr. Lew because Mancini had told him things were under control. Dr. Lew took

Mancini off Pramipexole, and the compulsive behaviors stopped. Mancini still

gambles occasionally, but only to the limited extent he did before 2008.

B.    Pramipexole

      Mancini isn’t the only person who’d done weird things while taking

Pramipexole. Pramipexole is a dopamine agonist, meaning it activates dopamine

receptors in the brain. That helps Parkinson’s patients control their movements,

but can also affect the brain’s executive function in a way that distorts risk/reward

assessments. Pramipexole was approved by the FDA in 1997, and by the early

2000s there were reports of users’ developing impulse control disorders (ICDs),

which make sufferers unable to control their behavior despite negative

consequences. The most common ICDs observed among Parkinson’s patients

taking Pramipexole were compulsive eating (Mancini gained about 40 pounds

while on the drug), shopping, or gambling; and hypersexuality. By around 2008

the correlation between Pramipexole and these ICDs was widely accepted. Today

physicians prescribing the drug closely monitor patients for signs that they’re

developing an ICD.
                                         -5-

[*5] The incidence of these behaviors is tied to dosage, but not directly--they

don’t tend to occur until the dosage hits a certain level, though they can worsen as

doses are maintained at or above that point. Not everyone on Pramipexole has

these problems, but a major study suggests that the percentage of people who do is

significant: According to the study, dopamine agonist users are 2½ to 3 times

more likely than nonusers to develop an ICD. The ICDs tend to go away once the

patients stop taking Pramipexole, although there can be residual effects.

      When the FDA first approved it, Pramipexole didn’t come with warnings

about ICDs in general or gambling in particular. Today, however, it specifically

warns that it can cause compulsive gambling.

C.    Pramipexole Lawsuits

      Many, many people have sued Pramipexole’s makers over the drug’s side

effects. Hundreds of individual cases have been consolidated into

multijurisdiction litigation in the U.S. District Court for the District of Minnesota.

See In re Mirapex Prods. Liab. Litig., 493 F. Supp. 2d 1376 (J.P.M.L. 2007)

(transferring all Pramipexole cases); In re Mirapex Prods. Liab. Litig., 246 F.R.D.

668, 671 (D. Minn. 2007) (“several hundred” cases pending). One plaintiff who

went to trial in 2008 received a jury verdict for $8.2 million. Charbonneau v.

Boehringer Ingelheim Pharm., Inc., Civil No. 06-1215, Special Verdict (D. Minn.
                                        -6-

[*6] July 31, 2008), ECF No. 321. Many other plaintiffs have reached

confidential settlements. See In re Mirapex Prods. Liab. Litig., MDL No. 07-

1836, 2012 WL 6840134, at *1 n.4 (D. Minn. Aug. 3, 2012) (report and

recommendation), adopted in part, rejected in part, 2013 WL 140292 (D. Minn.

Jan. 11, 2013).

      Mancini joined such a case in December 2010. The court found that he

should have known about the side effects by April 2008 and dismissed his case

because he hadn’t filed it within California’s two-year statute of limitations. See

Mancini v. Boehringer Ingelheim Pharm., Inc. (In re Mirapex Prods. Liab. Litig.),

Civil No. 10-5009, 2013 WL 1703476 (D. Minn. Feb. 14, 2013) (report and

recommendation); id. 2013 WL 1703510 (D. Minn. Apr. 19, 2013) (order adopting

report and recommendation), aff’d, 912 F.3d 1129 (8th Cir. 2019).

D.    Mancini’s Tax Returns

      Mancini filed income tax returns while all of this was going on. He filed his

2008 return in October 2009 with the help of a preparer. On it he reported

$149,000 in gambling winnings, deducted $149,000 for “Gambling Losses to

Extent of Winnings,” and claimed no casualty losses. On his 2009 return, which

he filed in October 2010 with the help of a preparer, he reported $107,000 in
                                        -7-

[*7] gambling winnings, deducted $107,000 for “Gambling Losses to Extent of

Winnings,” and reported no casualty losses.

      Mancini prepared his 2010 return himself using TurboTax. He reported

$45,000 in gambling winnings, deducted $45,000 for gambling losses, and

claimed a $603,000 casualty loss for “Investment Portfolio and Home.” The

Commissioner noticed the casualty loss and selected the return for audit.

      Mancini wasn’t done filing returns for 2008-10 though. In December 2012

he filed self-prepared amended returns for 2008 and 2009 directly with the IRS

Appeals Office. On the amended 2008 return he claimed a $1 million casualty

loss for “Investment Portfolio,” which reduced his reported taxable income from

$360,000 to !$640,000. On his amended 2009 return he claimed a $1.8 million

casualty loss for “Investment Portfolio,” which reduced his taxable income from

$1.1 million to !$700,000.

E.    Audit, Petition, and Trial

      In July 2013 the Commissioner issued Mancini a notice of deficiency

(NOD) for 2010, disallowing the original $603,000 casualty loss and asserting a

20% section 6662(a) penalty on the alternate grounds of negligence or disregard of

rules or regulations, substantial understatement of income tax, or substantial
                                          -8-

[*8] valuation misstatement.1 Mancini timely petitioned our court. In his petition

Mancini said he had a “net operating loss that has not yet carried over from

previous years,” and that “[o]nce that loss carries over, it will offset any income

* * * for 2010.”

       Mancini later gave the IRS Appeals Office an amended return for 2010,

which his attorney had prepared. On it he increased his 2010 casualty loss from

$603,000 to $678,000. He also carried forward and deducted the $1.4 million

excess casualty losses he’d recently claimed for 2008 and 2009. The

Commissioner didn’t accept or process this return.

       Here’s a table to help keep all these returns straight:

                                                    2008           2009          2010
               2008        2009         2010       Amended        Amended       Amended
 Gambling
  winnings    $149,000    $107,000    $45,000      $149,000       $107,000       $45,000
 Gambling
  losses      (149,000)   (107,000)    (45,000)    (149,000)      (107,000)      (45,000)
 Casualty
  losses        -0-         -0-       (603,000)   (1,000,000)    (1,800,000)    (678,000)
 Casualty
  loss
  carried
  forward       -0-         -0-         -0-          -0-            -0-        (1,400,000)



       1
        All section references are to the Internal Revenue Code in effect for the
years at issue, and all Rule references are to the Tax Court Rules of Practice and
Procedure, unless we say otherwise.
                                         -9-

[*9] We tried the case in Los Angeles.2 At trial Dr. Praveen Kambam, a forensic

psychiatrist, testified as an expert witness that Pramipexole had caused Mancini’s

compulsive gambling. The parties stipulated Forms W-2G, Certain Gambling

Winnings, that show Mancini’s gross winnings from the Venetian and Morongo

casinos in 2008-10. The parties also stipulated computer-generated records from

the Venetian that provide more detail about his activities there, but neither party

called a witness to explain how to read them. No records from online gambling

websites were introduced.

      Mancini did try to introduce some spreadsheets that didn’t indicate who had

made them or when they were prepared. He said they somehow reflected the

extent of the gambling losses he’d discussed with a revenue agent, which we

explained was both hearsay and irrelevant to the Tax Court’s de novo

redetermination. We didn’t admit them at trial, but Mancini nevertheless attached

what appear to be the same spreadsheets to his reply brief, along with a letter

between his attorney and the Commissioner’s. The Commissioner moved to strike

these attachments, and we said we’d address his motion in our opinion, which we

do by striking them. They are still irrelevant.


      2
        Mancini lived in California at all relevant times, so absent a stipulation to
the contrary this case is appealable to the Ninth Circuit. See sec. 7482(b)(1)(A).
                                         - 10 -

[*10] Although the Commissioner had asserted a penalty in the NOD, at trial he

didn’t introduce any evidence that he’d complied with section 6751(b)(1). See

Graev v. Commissioner (Graev III), 149 T.C. 485, 493 n.14 (2017) (citing Chai v.

Commissioner, 851 F.3d 190, 221 (2d Cir. 2017), aff’g in part, rev’g in part T.C.

Memo. 2015-42), supplementing and overruling in part 147 T.C. 460 (2016).

Mancini hadn’t mentioned the penalty in his petition, but both parties said it was at

issue in their pretrial memos and discussed it in their briefs.

                                      OPINION

      We will answer four questions:

      •      Did Pramipexole cause Mancini’s compulsive gambling?

      •      If so, can Mancini deduct his disastrous compulsive gambling losses
             as casualty losses?

      •      Did Mancini substantiate those losses?

      •      Is Mancini liable for a section 6662(a) penalty?

We consider each.

I.    Did Pramipexole Cause Mancini’s Disastrous Compulsive Gambling?

      This is a tax case, but the main factual question it raises is

neuropharmacological: Was Mancini’s compulsive gambling a side effect of
                                        - 11 -

[*11] Pramipexole? Answering this question requires us to evaluate the testimony

of Mancini’s expert, Dr. Kambam.

      A.     Daubert

      Expert testimony that’s “help[ful to] the trier of fact” is admissible “in the

form of an opinion or otherwise” if it’s “based on sufficient facts or data,” “is the

product of reliable principles and methods,” and is “reliably applied * * * to the

facts of the case.” Fed. R. Evid. 702. This standard applies to all specialized

knowledge, see Kumho Tire Co. v. Carmichael, 526 U.S. 137, 148 (1999), but it

grew from the Supreme Court’s decision in Daubert v. Merrell Dow Pharm., Inc.,

509 U.S. 579, 592 (1993), which specifically addressed scientific evidence, see

Fed. R. Evid. 702 advisory committee’s note to 2000 amendment. There, the

Court stressed that judges should focus on “principles and methodology, not on

* * * conclusions” when deciding whether evidence was “scientific”. Daubert,

509 U.S. at 595. Toward that end, it suggested considering whether proffered

theories have been tested, published in peer-reviewed journals, or widely accepted,

as well as what any known error rates were. Id. at 593-94.

      We follow these standards too. See, e.g., Trimmer v. Commissioner, 148

T.C. 334, 350-55 (2017); Boltar, LLC v. Commissioner, 136 T.C. 326, 334 (2011).

We have applied them to diagnoses, see Trimmer, 148 T.C. at 350-55, but we
                                       - 12 -

[*12] more often address them in connection with experts’ valuation reports, see,

e.g., Boltar, LLC, 136 T.C. at 332-40; Esgar Corp. v. Commissioner, T.C. Memo.

2012-35, 2012 WL 371809, at *11-*13, aff’d, 744 F.3d 648 (10th Cir. 2014);

Santa Monica Pictures, LLC v. Commissioner, T.C. Memo. 2005-104, 2005 WL

1111792, at *112-*120.

      Before applying the Daubert factors we need to consider what the expert

testimony is for. There are two possibilities: describing a general scientific

principle or phenomenon or applying a scientific principle or phenomenon to the

facts of the case. See David L. Faigman, John Monahan & Christopher Slobogin,

“Group to Individual (G2i) Inference in Scientific Expert Testimony,” 81 U. Chi.

L. Rev. 417, 418 (2014) (describing these as “framework” and “diagnostic”

evidence, respectively); see also Wal-Mart Stores, Inc. v. Dukes, 564 U.S. 338,

353-54, 354 n.8, 356 (2011) (distinguishing between systemic bias, prevalence of

bias at individual employer, and effect of bias on putative class members). These

two types of testimony often get blended together in a single expert’s report or

testimony. See Faigman et al., supra, at 424, 474-75. But it’s important for us to

distinguish between them because the Daubert factors apply a bit differently to

each type. See id. at 420-21, 425, 474-76.
                                        - 13 -

[*13] B.     Pramipexole and ICDs

      Dr. Kambam, a board-certified psychiatrist and neurologist, testified about

the side effects of Pramipexole in general--i.e., he gave “framework evidence.”

See id. at 424, 474-75. He told us that Parkinson’s affects movement because it

decreases the number of neurons that produce dopamine. He explained that

Pramipexole treats Parkinson’s because it’s a dopamine agonist--essentially a

substitute for natural dopamine that turns on dopamine receptors.

      Dr. Kambam went on to say that Pramipexole doesn’t just make the parts of

the brain that control movement think they’re getting more dopamine--it also has

that effect on the parts of the brain that control “executive functions” like impulse

control. That’s why people taking Pramipexole are 2½ to 3 times more likely than

the average person to develop an ICD. But that risk doesn’t set in when doses are

low; instead, it appears suddenly once doses reach a certain threshold level.

According to Dr. Kambam, the correlation between Pramipexole and ICDs is now

generally accepted and has been since around 2008.

      How does Dr. Kambam know all of this? He didn’t conduct the research

that led to these conclusions. Instead, his knowledge comes from reading
                                        - 14 -

[*14] published studies--he even directly cited one during his testimony.3 He’s

qualified to give this “framework” testimony because his medical training makes

him especially qualified to critique the validity of those studies’ methodologies.

See Faigman et al., supra, at 445-46. His “framework” testimony, then, was

essentially a review of the relevant published scientific studies, an approval of the

methodologies those studies used, and an assertion that the studies’ conclusions

are widely accepted in the scientific community. See id.

      His testimony is therefore somewhat like a review article--a type of

academic publication that summarizes and critiques all of the existing literature on

a specific topic. See Thomas Mann, A Guide to Library Research Methods 66

(1987). At trial we explained that we were already familiar with two review

articles about Pramipexole’s side effects: Brendan J. Kelley, Andrew P. Duker, &

Peter Chiu, “Dopamine Agonists and Pathologic Behaviors,” Parkinson’s Disease

(2012), https://www.hindawi.com/journals/pd/2012/603631/; and Chris B. Aiken,

“Pramipexole in Psychiatry: A Systematic Review of the Literature,” 68 J.

Clinical Psychiatry 1230 (2007). These say exactly what Dr. Kambam did:

Parkinson’s patients taking dopamine agonists have a heightened risk of becoming

      3
       That article was Daniel Weintraub et al., “Impulse Control Disorders in
Parkinson Disease: A Cross-Sectional Study of 3090 Patients,” 67 Archives of
Neurology 589 (2010).
                                        - 15 -

[*15] compulsive gamblers, but that risk ends when they stop taking the drug.4

See Aiken, supra, at 1233-34; Kelley et al., supra, at 2-3.

      Regardless of whether we rely on Dr. Kambam’s testimony or consider the

review articles directly, the evidence linking Pramipexole and compulsive

gambling satisfies Daubert.5 Both the testimony and the articles show that

numerous studies employing scientifically valid methodologies have tested and

demonstrated a connection between Pramipexole and ICDs. See Daubert, 509

U.S. at 593. Those studies have been published in peer-reviewed journals, and

their findings are generally accepted by the medical community. See id. at 593-94.

      The Commissioner doesn’t point to any contrary framework evidence and

hasn’t given us any reason to question the evidence we have. We therefore find


      4
        Both Dr. Kambam’s testimony and the review articles are also consistent
with Dr. Lew’s anecdotal testimony that he noticed some dose-related ICD onset
in patients during the clinical trials for Pramipexole in the early 2000s.
      5
         In this case Dr. Kambam succinctly summarized the existing literature’s
findings. We note, however, that we can judicially notice facts that “can be
accurately and readily determined from sources whose accuracy cannot reasonably
be questioned.” Fed. R. Evid. 201(b)(2). That includes facts related to scientific
evidence. For example, in Trimmer v. Commissioner, 148 T.C. 334, 353-54
(2017), we judicially noticed that the information and diagnostic techniques in the
fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-
5) met professional standards, had been subjected to peer review, and were widely
accepted in the scientific community; i.e., we judicially noticed that the DSM-5
satisfied Daubert. Once such a finding is made, there would seem to be no reason
not to also judicially notice the information itself.
                                         - 16 -

[*16] that a small but noticeable number of patients who take Pramipexole suffer a

disastrous loss of inhibition.

      C.     Mancini’s Compulsive Gambling

      Whether Pramipexole can cause ICDs, though, isn’t what’s at issue here.

That was just a preliminary question we needed to answer before moving on to the

ultimate fact we need to find: whether Pramipexole caused Mancini’s disastrous

compulsive gambling. See Faigman et al., supra, at 422-23.

      Dr. Kambam opined that it did--i.e., he gave “diagnostic evidence.” Id. at

424, 474-75. Unlike his framework testimony, which he was qualified to give

because of his knowledge, his opinion about Pramipexole’s effect on Mancini

rests on his skill and experience as a diagnostician applying framework

information to specific factual situations. Id. at 446-47. Dr. Kambam didn’t treat

Mancini; the facts to which he applied his knowledge of Pramipexole’s effects

came from Dr. Lew’s reports. Those reports probably would’ve been inadmissible

hearsay if Mancini had tried to introduce them directly, and the statements from

Mancini and his family contained within the reports would’ve made a second layer

of hearsay. But experts can give opinions based on inadmissible hearsay if the

facts they relied on are of a type that “experts in the particular field would

reasonably rely on * * * in forming an opinion on the subject,” Fed. R. Evid. 703;
                                         - 17 -

[*17] see Daubert, 509 U.S. at 595, and Dr. Lew’s reports certainly meet this

standard,6 see Sementilli v. Trinidad Corp., 155 F.3d 1130, 1134 (9th Cir. 1998).

      From Dr. Lew’s reports Dr. Kambam knew that Mancini reached his peak

Pramipexole dose in 2008 and went off the drug in 2010. He also knew from

reviewing Mancini’s gambling activities--another kind of hearsay--that Mancini’s

compulsive gambling occurred only between 2008 and 2010. Noting this

correlation, and knowing that Pramipexole causes some people to develop ICDs

when they reach certain dosages, Dr. Kambam drew the conclusion that

Pramipexole caused Mancini to gamble compulsively.

      Applying Daubert to “diagnostic” evidence is trickier than applying it to

“framework” evidence. See Faigman et al., supra, passim. “Diagnostic” testimony

applies general scientific principles to a specific case, and the conclusion is

usually untestable. See id. at 448, 451-52. And, of course, opinions about

individual litigants are unlikely to be the subject of peer-reviewed articles. That

leaves us to consider whether the process by which Dr. Kambam reached his

conclusion is reliable.7 Id. at 452, 456. Here, that process was (1) knowing that


      6
          Dr. Lew himself also testified to the specific facts Dr. Kambam relied on.
      7
        It’s okay that we only have one factor to consider when deciding whether
his opinion is “scientific”. Not all of the Daubert factors are pertinent to every
                                                                         (continued...)
                                        - 18 -

[*18] Pramipexole can cause compulsive gambling, (2) noting that Mancini’s own

compulsive gambling perfectly coincided with his peak Pramipexole use, and

(3) inferring that Pramipexole caused Mancini’s compulsive gambling. We think

basic logic is a valid methodology under Daubert.8

      That Pramipexole can cause compulsive gambling is clear, and we find that

Mancini compulsively gambled only when his Pramipexole dose was at its

maximum. This hardly seems coincidental. We therefore find it more likely than

not that Mancini’s compulsive gambling was a side effect of Pramipexole.

II.   Are Mancini’s Gambling Losses Casualty Losses?

      The Code says taxpayers can deduct nonbusiness losses that “arise from

fire, storm, shipwreck, or other casualty, or from theft.” Sec. 165(c)(3). Such

losses are deductible only to the extent that they exceed $100 and 10% of a

taxpayer’s adjusted gross income, sec. 165(h)(1) and (2), and taxpayers must claim




      7
       (...continued)
case. See Kumho Tire Co. v. Carmichael, 526 U.S. 137, 150 (1999); Union
Carbide Corp. & Subs. v. Commissioner, T.C. Memo. 2009-50, 2009 WL 605161,
at *106, aff’d, 697 F.3d 104 (2d Cir. 2012).
      8
        Basic logic is also, one would hope, not beyond the abilities of judges or
juries. For that reason, “diagnostic” testimony like this is often less helpful than
the “framework” testimony it applies--after all, the factfinder has to make up his
own mind about causation anyway.
                                       - 19 -

[*19] the deduction for the year in which the loss actually occurred, sec. 165(a);

secs. 1.165-1(d)(1), 1.165-7(a)(1), Income Tax Regs.

      Neither the Code nor the regulations define “other casualty.” But courts

sensibly applying the canon of ejusdem generis have consistently held that the

general term “other casualty” must mean something like the specific terms that

precede it--“fire”, “storm”, and “shipwreck”. See, e.g., Maher v. Commissioner,

680 F.2d 91, 92 (11th Cir. 1982), aff’g 76 T.C. 593 (1981); Torre v.

Commissioner, T.C. Memo. 2001-218, 2001 WL 904250, at *3, aff’d, 52 F. App’x

965 (9th Cir. 2002); see also Pulvers v. Commissioner, 407 F.2d 838, 839 (9th Cir.

1969), aff’g 48 T.C. 245 (1967). As a result, an “other casualty” is a loss arising

from something “sudden, unexpected, or unusual,”9 see, e.g., Maher, 680 F.2d at

      9
        The caselaw contains numerous variations on this phrase. See, e.g.,
Coleman v. Commissioner, 76 T.C. 580, 589 (1981) (“sudden, unusual,
unexpected, and accidental”); White v. Commissioner, 48 T.C. 430, 433-34 (1967)
(“sudden, unexpected, violent and not due to deliberate or willful actions” by the
taxpayers); Durden v. Commissioner, 3 T.C. 1, 3 (1944) (“undesigned, sudden and
unexpected”). Some cases also use the term “cataclysmic,” see Popa v.
Commissioner, 73 T.C. 130, 132 (1979); Torre v. Commissioner, T.C. Memo.
2001-218, 2001 WL 904250, at *3, aff’d, 52 F. App’x 965 (9th Cir. 2002), but
we’ve specifically held that “the magnitude of the casualty is not and should not
be the controlling factor in determining whether a questioned event qualifies for
casualty loss deduction treatment,” White, 48 T.C. at 434. In White, for example,
we allowed a casualty-loss deduction for the value of a diamond that popped out
of an engagement ring and disappeared in a gravel driveway after a car door was
accidentally slammed on the ring-wearer’s hand. Id.; see also Rev. Rul. 72-592,
                                                                       (continued...)
                                       - 20 -

[*20] 92; Farber v. Commissioner, 57 T.C. 714, 718 n.3 (1972); Dubin v.

Commissioner, T.C. Memo. 1976-256, 35 T.C.M. (CCH) 1120 (1976); Rev. Rul.

72-592, 1972-2 C.B. 101, not from “progressive deterioration [due to] a steadily

operating cause,” even if the damage “was not discovered until it was complete,”

Fay v. Helvering, 120 F.2d 253, 253 (2d Cir. 1941). Taxpayers can therefore

deduct losses for property damaged by blasting, Durden v. Commissioner, 3 T.C.

1, 5 (1944), or lost during the abrupt fall of Saigon, Popa v. Commissioner, 73

T.C. 130, 132-34 (1979), but can’t deduct losses caused by the slower havoc

wreaked by termites, Fay, 120 F.2d at 253, dry rot, United States v. Rogers, 120

F.2d 244, 246 (9th Cir. 1941), or disease, Maher, 680 F.2d at 93; Coleman v.

Commissioner, 76 T.C. 580, 588-92 (1981).

      Mancini argues that the ICD his Pramipexole caused fits this definition of

an “other casualty.” According to him, it was sudden because it manifested

abruptly once his dosage reached a certain level, it was unexpected because

neither he nor Dr. Lew anticipated it, and it was unusual, even for Pramipexole

takers.


      9
      (...continued)
1972-2 C.B. 101. There we suggested that the $100 threshold would prevent
taxpayers from deducting as casualty losses “everyday household and other losses
which are less than cataclysmic in impact or scope.” White, 48 T.C. at 436.
                                         - 21 -

[*21] A.     Physical Damage

      The Commissioner disagrees with these characterizations and also raises an

important point: A casualty loss is deductible only if the taxpayer’s property

suffered physical damage, and here there was none. See, e.g., Furer v.

Commissioner, 33 F.3d 58 (9th Cir. 1994), 1994 WL 417425, at *1 (“loss must be

the result of physical damage to property”), aff’g without published opinion T.C.

Memo. 1993-165; Citizens Bank of Weston v. Commissioner, 28 T.C. 717, 720

(1957) (physical damage of property prerequisite), aff’d, 252 F.2d 425 (4th Cir.

1958); Dubin, 35 T.C.M. (CCH) at 1122 (same). Mancini insists that these cases

don’t say what they do--he says they’re each really about whether an event was a

casualty, not whether physical damage to property was required for a casualty

loss, and that their statements about what a casualty loss requires are therefore

dicta. It’s a gallant attempt at hair-splitting, but it’s also wrong. Let’s look at the

caselaw.

      The wellspring of precedent in this area is Citizens Bank of Weston v.

Commissioner, 28 T.C. 717 (1957). There, a flood ruined the records a bank kept

in its basement, but didn’t really damage the bank building itself. Id. at 718-19.

The bank claimed a casualty loss, arguing that the risk that the basement could

flood again reduced the building’s market value. Id. at 719. We disallowed the
                                        - 22 -

[*22] deduction because the flood neither damaged the building nor caused the

taxpayer to abandon it. Id. at 720. We explained that whatever loss was suffered

was due only to the fluctuation in the building’s value, which wasn’t a casualty

loss. Id. at 719-20.

      The Ninth Circuit applied the same reasoning in Pulvers, 407 F.2d 838, and

Kamanski v. Commissioner, 477 F.2d 452 (9th Cir. 1973), aff’g T.C. Memo.

1970-352. In both those cases the taxpayers claimed casualty losses for drops in

the value of their properties following mudslides that didn’t actually damage the

properties but did raise fears of future mudslides. Pulvers, 407 F.2d at 838-39;

Kamanski, 477 F.2d at 452. In each case the Ninth Circuit disallowed the

deduction because the mudslide hadn’t physically damaged the taxpayer’s

property. Pulvers, 407 F.2d at 838-39; Kamanski, 477 F.2d at 452. In Pulvers the

court specifically held that the types of losses section 165(c)(3) names--fire, storm,

shipwreck, and theft--“surely involve[] physical damage or loss of the physical

property,” Pulvers, 407 F.2d at 839, and in Kamanski the Ninth Circuit disallowed

the deduction because “[t]he loss in market value was not due to damage caused

by the casualty [i.e., the mudslide],” Kamanski, 477 F.2d at 452.

      The rule that a casualty loss requires physical damage to property has held

fast through the decades. In Dubin, 35 T.C.M. (CCH) at 1120, a college student
                                       - 23 -

[*23] was called to active duty after his parents had paid for his room and board.

They got no refund, but they also got no deduction: The call wasn’t unexpected

and there was no physical damage to any property. Id. at 1122. In Furer, 1994

WL 417425, at *2, the Ninth Circuit affirmed our holding that financial losses the

taxpayers suffered as a result of a stock market crash weren’t deductible casualty

losses because they “were the result of fluctuation in the market and not the result

of any physical injury to the [taxpayers’] property.” In Torre, 2001 WL 904250, at

*3, we held that a taxpayer couldn’t deduct as a casualty the loss he suffered from

selling his house to escape racist harassment because the harassment was ongoing

and not sudden, and the taxpayer “offered no evidence showing any serious

physical damage or destruction to his property.”10 And in Pang v. Commissioner,

T.C. Memo. 2011-55, 2011 WL 821182, at *3, we disallowed a bad driver’s

deduction for a wrongful-death settlement because, even though the car accident

was a “casualty” and the payment the taxpayer had to make was a “loss”, the loss

wasn’t due to physical damage to the taxpayer’s property.




      10
         We also explained that the taxpayer’s “remedy from the harassment and
vandalism * * * would be found in civil or criminal remedies, but not in the
Internal Revenue Code.” Torre, 2001 WL 904250, at *3 (quoting Kalbfleisch v.
Commissioner, T.C. Memo. 1991-61).
                                        - 24 -

[*24] In each of these cases we had to decide whether a taxpayer was entitled to a

casualty-loss deduction, which necessarily meant we had to decide what the

prerequisites for that deduction were. And each decision unequivocally held that

physical damage to the taxpayer’s property was a prerequisite of a casualty loss

deduction. We’ll follow suit.

      Sixty-odd years of caselaw notwithstanding, Mancini argues that physical

damage can’t be a prerequisite of a casualty-loss deduction because, in general, the

Code doesn’t limit the definition of “property” to just physical assets. Mancini

doesn’t cite any cases that support this argument, and, as we’ve seen, the caselaw

on casualty losses says the exact opposite. But he does cite something interesting:

an IRS Publication that says a taxpayer can deduct as a casualty the “loss on

deposits [that occurs] when a bank, credit union, or other financial institution

becomes insolvent or bankrupt.” IRS Pub. 547, Casualties, Disasters, and Thefts,

at 4 (2017). This would suggest that physical damage to the taxpayer’s property

might not be required for a casualty loss.

      Fortunately for the Commissioner, his own publications aren’t the law. See,

e.g., Stengel v. Commissioner, T.C. Memo. 1992-570, 1992 WL 235192, at *2,

aff’d without published opinion, 996 F.2d 1227 (9th Cir. 1993). We have said,

however, that we’ll treat revenue rulings, which also aren’t binding precedent, as
                                        - 25 -

[*25] concessions, and it’s tempting to do the same with Publication 547 here.

See Rauenhorst v. Commissioner, 119 T.C. 157, 171-73 (2002). But even if we

did, that publication says only that taxpayers can claim as a casualty the “type of

loss” that occurs when a bank becomes insolvent or goes bankrupt, see IRS Pub.

547, at 4--it doesn’t authorize casualty-loss deductions for decreases in bank

accounts generally. We’re therefore not inclined to let Publication 547 upset

decades of caselaw from both our Court and the Ninth Circuit.

      We do find that Mancini’s brain was damaged by the Pramipexole, but

physical damage to property remains one of the prerequisites of a casualty-loss

deduction. Mancini’s depleted bank accounts, and the money he left on the table

when he made bad real-estate deals, didn’t suffer any physical damage. So, even if

the onset of his ICD was sudden, unexpected, and unusual, Mancini isn’t entitled

to a section 165(c)(3) deduction for his gambling losses.

      B.     Calculating a Casualty Loss

      The lack of physical damage to any of his property isn’t the only thing

standing between Mancini and a section 165(c)(3) deduction. The way casualty

losses are calculated also shows that the kind of losses he’s claiming simply don’t

qualify under section 165(c)(3). The regulations tell us that the amount of a

casualty loss is the fair market value of the property “immediately before the
                                        - 26 -

[*26] casualty” minus the fair market value of the property “immediately after the

casualty.” Sec. 1.165-7(a)(2)(i), (b)(1), Income Tax Regs. This amount is reduced

by any compensation received from insurance, see Farber, 57 T.C. at 718 (citing

Helvering v. Owens, 305 U.S. 468, 471 (1939)), and can’t exceed the taxpayer’s

adjusted basis in the property, see sec. 1.165-7(b)(2)(ii), Income Tax Regs. How

would we apply this method to Mancini?

      Mancini claims he suffered gambling losses over the course of three years.

These losses were necessarily the result of dozens or hundreds of individual

gambling sessions and probably thousands of separate wagers. And the property

he claims he lost was the money in his bank accounts. How do we determine what

the value of these accounts was “immediately before” and “immediately after” the

casualty, which he says was the onset of his ICD? Assuming we had an exact date

for that, we suppose we could treat the account balances on that date as the

“immediately before” fair market value. Mancini, then, would need us to use the

fair market value on the date he went off Pramipexole as the “immediately after”

date--even though it was three years later.11

      11
        Mancini would also have to show that the only withdrawals from his
accounts during those three years went towards fueling his compulsive gambling,
which we doubt would be possible. He’d also have to show his bases in the
accounts he says were depleted. That might be feasible for cash he’d put into
                                                                     (continued...)
                                        - 27 -

[*27] What is more, a three-year-long casualty is not “sudden”. A revenue ruling

summarizing caselaw tells us that “sudden” means “swift and precipitous and not

gradual and progressive.” Rev. Rul. 72-592, 1972-2 C.B. at 101. Even if the

onset of the ICD was “sudden,” and even if Mancini didn’t realize what was

happening to his savings until three years later, the gambling losses grew

gradually over time--Mancini himself is trying to deduct compulsive-gambling

losses for three separate tax years. That makes the losses he sustained just like

damage from slow-moving termites or dry rot, which can start without the

taxpayer’s knowledge and take years to discover, but isn’t a casualty because the

damage is not sudden. See Fay, 120 F.2d at 253.

      Mancini’s losses are simply not what the Code considers a “casualty”. They

progressed over the course of three years, and there was no physical damage to

any of his property. Section 165(c)(3) allows the deduction of only specific types

of losses--it’s not a stand-in for all the types of damages that would be recoverable




      11
        (...continued)
regular savings or checking accounts but could be tricky for retirement accounts
he made pretax contributions to, which could have zero bases. See Cohen v.
Commissioner, T.C. Memo. 2004-227, 2004 WL 2251801, at *3.
                                       - 28 -

[*28] in a civil action. See Torre, 2001 WL 904250, at *3; Kalbfleisch v.

Commissioner, T.C. Memo. 1991-61, 61 T.C.M. (CCH) 1902, 1905 (1991).12

III.   Did Mancini Substantiate His Losses?

       Even if we had found that Mancini’s compulsive-gambling losses were

casualty losses, he could still deduct them only if he substantiated their amounts.

Sec. 6001; sec. 1.6001-1(a), Income Tax Regs. On his 2010 return, Mancini

deducted a $603,000 loss. But the records in evidence don’t show losses

anywhere close to that amount. His Forms W-2G from 2010 show that he won

$45,000, and the only other records of his gambling activity that we have are from

the Venetian and Morongo casinos. No witness explained these records, and we


       12
         If his compulsive-gambling losses were deductible casualty losses,
Mancini would also have to contend with section 165(d). That section says
gambling losses are deductible only to the extent of gambling winnings. Mancini
acknowledges that we’ve held that this limitation applies to professional gamblers
because section 165(d)’s specific proscription takes precedence over section
162(a)’s general allowance of business-expense deductions. See Valenti v.
Commissioner, T.C. Memo. 1994-483, 1994 WL 534499, at *2. But Mancini has
two arguments for why section 165(d) wouldn’t apply to him. First, he says that
section 165(d) and section 165(c)(3) are equally specific, so neither controls. He
also says that the public policy underlying section 165(d)--which is to discourage
gambling--doesn’t make sense for Mancini, whose gambling was involuntary.
       These are interesting arguments. But because we’ve determined that
Mancini didn’t have a casualty loss to begin with, they’re not arguments we need
to address. We urge readers interested in the interplay of potentially conflicting
subsections of a single statutory section to read RadLAX Gateway Hotel, LLC v.
Amalgamated Bank, 566 U.S. 639, 643-47 (2012).
                                        - 29 -

[*29] can decipher only a few things about them. For example, both casinos’

records contain the same information that’s on Mancini’s W-2Gs, and some pages

of the Venetian records appear to list limo rides and other perks the casino gave

him.

       Ten pages of the Venetian records also appear to list individual slot

machines that Mancini played. Each listing shows when and for how long

Mancini played the machine and has entries for “coin in” and “coin out.” We’re

not exactly sure how to interpret these; but even if we make the inferences most

favorable to Mancini--that his winnings or losses from each machine are the

differences between the total “coin in” and “coin out,” expressed in dollars and not

some other denomination of actual coin, and that all losses came directly from his

accounts--the losses are far less than the $45,000 in winnings he reported from all

gambling sources that year.

       Mancini therefore hasn’t shown by a preponderance of the evidence that he

actually suffered the losses he claimed on his return. Therefore, as an alternative

holding, even if his losses were the result of a casualty they still wouldn’t be

deductible.13

       13
         Mancini thinks he still doesn’t have a deficiency for 2010 even if we
don’t allow the casualty loss he claimed for that year. According to him, the
                                                                      (continued...)
                                        - 30 -

[*30] IV.    Is Mancini Liable For a Section 6662(a) Penalty?

      The Commissioner determined a penalty against Mancini under section

6662(a), which imposes a 20% penalty on understatements that are substantial, see

sec. 6662(b)(2), (d), or that are due to negligence or disregard of rules and

regulations, see sec. 6662(b)(1), (c). The Commissioner has the initial burden of

production for penalties determined against individuals. Sec. 7491(c). He meets

part of his burden for a substantial-understatement penalty here because Mancini’s

      13
         (...continued)
excess casualty losses he claimed for 2008 and 2009 on the self-prepared amended
returns he gave to the IRS Appeals Office carry forward and more than eliminate
any income from 2010. See sec. 172(a), (c). Mancini thinks that neither we nor
the Commissioner can question his entitlement to the carryforwards because the
Commissioner already accepted the underlying deductions from 2008 and 2009.
       But “the taxpayer bears the burden of establishing both the actual existence
of net operating losses in the prior years and the amount of such losses that may be
carried to the years at issue.” Keith v. Commissioner, 115 T.C. 605, 621 (2000);
see also Rule 142(a); Lee v. Commissioner, T.C. Memo. 2006-70, 2006 WL
931925, at *3. A return that merely claims a deduction isn’t proof of that
deduction, because it “only sets forth petitioner’s claimed NOL and does not
establish petitioner’s entitlement thereto.” Lee, 2006 WL 931925, at *3 (citing
Roberts v. Commissioner, 62 T.C 834, 837 (1974)). We can therefore examine
facts from those years, even though they aren’t before us, because doing so is
necessary to determine whether Mancini really does have losses to carry forward
and apply against his 2010 deficiency. Sec. 6214(b); Keith, 115 T.C. at 621; Lee,
2006 WL 931925, at *3.
       Mancini’s substantiation of the 2008 and 2009 compulsive-gambling losses
he wants to carry forward is no better than his substantiation for his 2010 losses.
And even if it was, his losses weren’t casualty losses, just as his 2010 losses
weren’t, which means they weren’t deductible anyway. Mancini’s purported
losses for 2008 and 2009 don’t offset any of his 2010 deficiency.
                                        - 31 -

[*31] deficiency is more than $5,000 and more than 10% of the tax he should’ve

reported. See sec. 6662(d)(1)(A). The Commissioner also says that Mancini’s

failure to substantiate his purported casualty losses means that Mancini was

negligent. See sec. 6662(c); sec. 1.6662-3(b)(1), Income Tax Regs.

      A.     Mancini’s Defense

      Mancini argues that he shouldn’t have to pay the penalty because substantial

authority supported his return position. He argues that the Commissioner

“approved” the amended 2008 and 2009 tax returns that he gave to the IRS

Appeals Office during the audit of his 2010 return and that he should therefore be

able to treat as substantial authority the position he took on them--namely, that he

was entitled to huge, unsubstantiated casualty losses from his compulsive

gambling.

      It’s true that a taxpayer can escape an understatement penalty “if there is or

was substantial authority” for how he reported his tax liability. Sec.

6662(d)(2)(B)(I); see sec. 1.6662-4(d)(1), Income Tax Regs. But the regulations

list the types of authority taxpayers can rely on for purposes of this defense. Sec.

1.6662-4(d)(3)(iii), Income Tax Regs. That list includes the Code, regulations, tax

treaties, revenue rulings, and court opinions, as well as a few other government-

produced sources. Id. It doesn’t include a taxpayer’s own amended tax returns.
                                      - 32 -

[*32] B.    Section 6751

      But Mancini still won’t have to pay this penalty. Part of the

Commissioner’s burden of production on penalties is to show that they were

“personally approved (in writing) by the immediate supervisor of the individual

making such determination.” Sec. 6751(b)(1); see Graev III, 149 T.C. at 493. The

Commissioner didn’t introduce any evidence of such approval, so we won’t

sustain the section 6662(a) penalty. See Wheeler v. Commissioner, 127 T.C. 200,

208, 210, 212 (2006), aff’d, 521 F.3d 1289 (10th Cir. 2008); Ford v.

Commissioner, T.C. Memo. 2018-8, at *6, aff’d, ___ F. App’x ___, 2018 U.S.

App. LEXIS 31221 (6th Cir. Nov. 5, 2018).


                                               Decision will be entered under

                                      Rule 155.
