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           IN THE UNITED STATES COURT OF APPEALS
                    FOR THE FIFTH CIRCUIT
                                                                      United States Court of Appeals
                                                                               Fifth Circuit

                                      No. 16-30112                           FILED
                                                                     December 27, 2016
                                                                        Lyle W. Cayce
BRAD DAWSON; CHARLENE DAWSON,                                                Clerk

              Plaintiffs - Appellants

v.

ROCKTENN SERVICES, INCORPORATED; ROCKTENN CP, L.L.C.;
ROCKTENN COMPANY,

              Defendants - Appellees




                   Appeal from the United States District Court
                      for the Western District of Louisiana
                             USDC No. 5:13-CV-3299


Before KING, OWEN, and HAYNES, Circuit Judges.
PER CURIAM:*
       Plaintiff–Appellant Brad Dawson worked as a delivery truck driver and
was injured while making a sulfuric acid delivery to a paper mill owned and
operated by Defendants–Appellees. Dawson and his wife, Plaintiff–Appellant
Charlene Dawson, sued Defendants–Appellees, asserting negligence.                                The
magistrate judge, to whom this matter was referred by consent, granted



       * Pursuant to 5TH CIR. R. 47.5, the court has determined that this opinion should not
be published and is not precedent except under the limited circumstances set forth in 5TH
CIR. R. 47.5.4.
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                                 No. 16-30112
summary judgment in favor of Defendants–Appellees.           For the following
reasons, we AFFIRM.
           I. FACTUAL AND PROCEDURAL BACKGROUND
      Defendants–Appellees Rock-Tenn Services, Inc., Rock-Tenn CP, L.L.C.,
and Rock-Tenn Co. (collectively, Rock-Tenn) own and operate a paper mill in
Hodge, Louisiana. The mill requires large amounts of sulfuric acid, and Rock-
Tenn contracted with Martin Transport to deliver sulfuric acid to the mill twice
a day from a third-party. Plaintiff–Appellant Brad Dawson has many years of
experience delivering hazardous cargo and was hired by Martin Transport as
a truck driver around February 2013.        In the months following his hire,
Dawson delivered sulfuric acid to the mill at least daily, sometimes twice daily,
without incident.
      Under Rock-Tenn’s operating procedures, the first step in the sulfuric
acid delivery process entails the driver donning safety gear, including a hard
hat, face shield, goggles, rubber gloves, rubber boots, and a full rubber suit.
The driver next ensures that all hoses are “free from defects and void of other
material.” If the hoses pass the driver’s inspection, the driver connects one of
the hoses—an air hose—to his tanker-trailer to build up pressure in the tank.
The driver then connects another hose—the delivery hose—to the tanker-
trailer. Once the driver opens the valves on the tanker and the mill’s vessel,
the acid flows from the tanker into the mill’s vessel through the delivery hose.
Each offloading (involving roughly 2,800 to 3,000 gallons of acid) takes about
an hour.
      When the tanker-trailer is empty, a pressure gauge on the tanker reads
zero, and the delivery hose begins to shake, indicating the offload is complete.
The valves on the tanker and the mill’s vessel are then closed, and a valve on
a pressure-release line is opened to release any pressurized sulfuric acid


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                                      No. 16-30112
remaining in the delivery hose. 1 Any remaining pressure in the delivery line
is then bled into an underground, plant-wide drainage system roughly 30 to 40
feet from the tanker-trailer. The process usually takes about 10 to 15 seconds.
The drainage system is covered by a grate, which impedes the driver’s ability
to see whether any pressurized sulfuric acid has actually been bled from the
delivery hose.
       On June 5, 2013, Jerry Brown, a trainee employed by Martin Transport,
accompanied Dawson on his sulfuric acid delivery to Rock-Tenn’s mill. Dawson
and Brown made their first delivery to Rock-Tenn’s mill without incident. On
their second delivery to the mill, after the tanker was empty and the valves on
the tanker and the mill’s vessel were closed, Dawson instructed Brown to open
the valve on the pressure-release line. Brown opened the valve and gave
Dawson a thumbs up after the valve had been turned. Dawson then waited 30
seconds before releasing one of the locks connecting the delivery hose to the
tanker-trailer. As he did so, his safety shield was blown off, and he was
sprayed with pressurized sulfuric acid on his face and head. Brown ran to his
assistance and used a nearby hose to wash Dawson. 2 Dawson was rendered
disabled as a result of his injuries.
       Two days after the accident, Joe Williams, a Martin Transport employee,
inspected the tanker-trailer involved in the accident and found glass in the
tanker, possibly from a bottle used to sample the acid after loading, and a
broken spring in an internal valve of the tanker. After the inspection, Williams
requested that a pressure gauge used to measure pressure inside the tank be
replaced, probably because it “had a blurred sight glass,” which made it



       1 The pressure-release line (and the delivery hose to which it connects) is owned and
supplied by Rock-Tenn.
       2 Brown was apparently unable to get Dawson to the safety shower because Dawson

and the shower were separated by a four or five foot tall construction fence.
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                                  No. 16-30112
difficult to see the internal needle’s operation. In his deposition, Williams
testified that the faulty spring in the internal valve would have had “[v]ery
little” effect on the functionality of the internal valve, and a malfunctioning
PSI gauge would only affect the driver’s ability to tell when the tanker was
void of pressure “some, [but] not a whole lot.” He also testified that he did not
believe that the glass or broken spring had anything to do with the accident.
        Based largely, if not wholly, on Williams’s inspection, Steven Nattin, a
Martin Transport supervisor, prepared an incident investigation report dated
June 10, 2013, and an on-the-job injury investigation report dated June 11,
2013.    These reports concluded essentially the same thing as Williams’s
inspection: The “[t]railer internal valve had a broken spring & the trailer had
a sample bottle in it. This resulted in the internal & external valve not being
able to seal off completely, allowing pressure to build in hose after initial bleed
off.” Similarly to Williams, Nattin testified in his deposition that the internal
valve would have operated even with the broken spring, but that he
nonetheless identified the spring and bottle as the cause of the accident
because “all [he] had to go on was [Martin Transport’s] findings of the tank
inspection.”
        Rock-Tenn also conducted an investigation of the accident, which
consisted of “[b]asically going to the site and talking through [with the Martin
Transport personnel present] what they had learned by talking to Mr. Dawson
at the emergency room and [to Brown].” The investigation lasted a couple of
hours and determined that the accident was caused by “a timing issue as far
as opening or closing the vent whenever Mr. Dawson removed the hose from
the truck.” Rock-Tenn did not inspect the pressure-release line as part of its
investigation.
        In the weeks following the accident, Martin Transport continued to make
daily sulfuric acid deliveries to the mill without incident. However, on June
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                                      No. 16-30112
27, 2013, Thomas Kelly, another Martin Transport driver, was involved in a
similar accident. An investigation concluded that Kelly’s accident was caused
by a plugged pressure-release line, and the same day as Kelly’s accident, Rock-
Tenn issued a work order instructing that the pressure-release line be
“unchoke[d] or change[d] out.” The pressure-release line was subsequently
replaced and discarded. At his deposition, Nattin testified that, in light of
Kelly’s accident, he believed Dawson’s accident “had nothing to do on our
[Martin Transport’s] end.”
       On December 30, 2013, Dawson and his wife, Charlene (together,
Plaintiffs), filed the instant suit, alleging Rock-Tenn’s negligence caused their
damages. The parties consented to trial before a magistrate judge. On May
13, 2015, Rock-Tenn filed a motion for complete summary judgment, which the
magistrate judge granted. 3 The magistrate judge found that Plaintiffs had
failed to show that Rock-Tenn “knew or should have known of any problem
(assuming there was one) with the pressure release hose or valve,” as required
for liability by section 2317.1 of the Louisiana Civil Code. 4 The magistrate
judge concluded that, in light of the fact that the deliveries occurred daily,
sometimes twice daily, without incident for years before Dawson’s June 5th
accident, “[t]here is simply no evidence of any problems or warning signs prior
to Dawson’s accident” that would have provided Rock-Tenn with the requisite
actual or constructive knowledge. The magistrate judge also found that the


      3  In that same order, the magistrate judge denied Plaintiffs’ March 18, 2015, motion
for partial summary judgment. This denial is not directly at issue in this appeal.
       4 Article 2317.1 provides as follows:


       The owner or custodian of a thing is answerable for damage occasioned by its
       ruin, vice, or defect, only upon a showing that he knew or, in the exercise of
       reasonable care, should have known of the ruin, vice, or defect which caused
       the damage, that the damage could have been prevented by the exercise of
       reasonable care, and that he failed to exercise such reasonable care. Nothing
       in this Article shall preclude the court from the application of the doctrine of
       res ipsa loquitur in an appropriate case.
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                                 No. 16-30112
doctrine of res ipsa loquitur did not apply to the case because “Rock-Tenn did
not have exclusive control over the offload system,” as delivery drivers, such as
Dawson, “had access to and used the offload system . . . multiple times per
day,” and “Rock-Tenn’s negligence [wa]s not the only reasonable conclusion as
to the cause of the accident.”     Following the denial of their motion for
reconsideration, Plaintiffs timely appealed.
                        II. STANDARD OF REVIEW
      When, as here, the parties consent to a magistrate judge’s disposition of
a motion for summary judgment, we “review the [magistrate judge’s] grant of
summary judgment de novo, applying the same standard as the magistrate
judge.” Henley v. Edlemon, 297 F.3d 427, 429 (5th Cir. 2002). Summary
judgment is proper “if the movant shows that there is no genuine dispute as to
any material fact and the movant is entitled to judgment as a matter of law.”
Fed. R. Civ. P. 56(a). “A genuine dispute as to a material fact exists ‘if the
evidence is such that a reasonable jury could return a verdict for the
nonmoving party.’” Rogers v. Bromac Title Servs., L.L.C., 755 F.3d 347, 350
(5th Cir. 2014) (quoting Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 248
(1986)). We “construe[] ‘all facts and inferences in the light most favorable to
the nonmoving party.’” McFaul v. Valenzuela, 684 F.3d 564, 571 (5th Cir. 2012)
(quoting Dillon v. Rogers, 596 F.3d 260, 266 (5th Cir. 2010)).
               III. SUMMARY JUDGMENT WAS PROPER
      Plaintiffs assert that the magistrate judge committed several reversible
errors in granting Rock-Tenn’s motion for summary judgment. Specifically,
they assert the magistrate judge erred in (1) concluding that Plaintiffs had not
shown Rock–Tenn’s constructive knowledge of a clog in the pressure-release
line, as required by article 2317.1 of the Louisiana Civil Code; (2) declining to
apply the doctrine of res ipsa loquitur; (3) refusing to allow them to supplement


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                                  No. 16-30112
their opposition to Rock-Tenn’s motion; and (4) failing to address their “faulty
design and procedure claim.” We address each assertion in turn.
A. Constructive Knowledge
      Plaintiffs assert that Dawson’s June 5th accident was caused by a clog
in the pressure-release line. According to Plaintiffs, this clog constituted a
defect within the meaning of article 2317.1 of the Louisiana Civil Code, and
Rock-Tenn had constructive knowledge of that defect (i.e., they should have
known of its existence in the exercise of reasonable care).           Specifically,
Plaintiffs assert that, if Rock-Tenn had conducted reasonable inspection and
maintenance of the pressure-release line, it would have discovered the alleged
clog in the line.    The magistrate judge, assuming the alleged clog in the
pressure-release line constituted a defect, concluded that Plaintiffs failed to
present any evidence that Rock-Tenn had constructive knowledge of that
alleged defect. We agree with the magistrate judge.
      The parties accept that article 2317.1 of the Louisiana Civil Code governs
liability in this case. Accordingly, we begin our analysis with the text of article
2317.1, which provides, in pertinent part, that “[t]he owner or custodian of a
thing is answerable for damage occasioned by its . . . defect, only upon a
showing that he knew or, in the exercise of reasonable care, should have known
of the . . . defect which caused the damage.” La. Civ. Code Ann. art. 2317.1.
As the plain text of article 2317.1 makes clear, the question of whether a
custodian or owner of a thing has constructive knowledge of a defect in that
thing is inextricably linked with the exercise of reasonable care. See Walters
v. City of West Monroe, 162 So. 3d 419, 424 (La. Ct. App. 2015).
      Louisiana courts have traditionally analyzed the exercise of reasonable
care as consisting of two separate components. See Myers v. Dronet, 801 So. 2d
1097, 1108 (La. Ct. App. 2001); see also, e.g., Kent v. Gulf States Utils. Co., 418
So. 2d 493, 497 (La. 1982).       The first component requires the owner or
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                                  No. 16-30112
custodian to take reasonable steps to discover defects in the thing that create
an unreasonable risk of harm. See Myers, 801 So.2d at 1108; see also, e.g.,
Kent, 418 So. 2d at 497. The second component requires the owner or custodian
to take reasonable steps to protect against injurious consequences resulting
from defects in the thing that create an unreasonable risk of harm. See Myers,
801 So. 2d at 1108; see also, e.g., Kent, 418 So.2d at 497.
      When an owner or custodian of a thing fails to exercise reasonable care
to discover a defect in that thing, Louisiana law imputes the owner or
custodian with knowledge of the defect if the defect is of such a character or
has existed for such a period of time that a reasonable custodian or owner
would have discovered it. See, e.g., Dufrene v. Gautreau Family, LLC, 980 So.
2d 68, 80 (La. Ct. App. 2008) (recognizing constructive knowledge requires
party to discover “apparent” defects and those that have been shown to exist
for “a long period of time”). The obligation that arises from this constructive
knowledge is the same as that which arises from actual knowledge—the owner
or custodian must take reasonable steps to protect against the injurious
consequences resulting from the defect. See Myers, 801 So.2d at 1108; see also,
e.g., Kent, 418 So.2d at 497. Thus, an owner or custodian of a thing cannot
avoid liability under article 2317.1 by merely claiming ignorance of the
existence of a defect in that thing if, in the exercise of reasonable care, the
defect should have been discovered. See, e.g., Crooks v. Sw. La. Hosp. Ass’n, 97
So. 3d 671, 678–79 (La. Ct. App. 2012) (rendering judgment for plaintiff who
demonstrated that, had the defendant “exercised reasonable care, i.e.
inspect[ed] the sofa beds in use in its facility, it would have discovered the
defect”). Conversely, an owner or custodian of a thing is not liable under article
2317.1 if the type of inspection that a reasonable owner or custodian would
have undertaken under the circumstances would not have revealed the alleged
defect in that thing. See, e.g., Bush v. XYZ Ins. Co., 880 So. 2d 953, 956 (La.
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                                       No. 16-30112
Ct. App. 2004) (finding defendant was not liable under article 2317.1 where
defendant would have been required to hire a metallurgist to discover defect).
       Here, Plaintiffs have failed to provide any evidence that Rock-Tenn
failed to exercise reasonable care in its inspection and maintenance of the
pressure-release line. Rock-Tenn was not the insurer of the pressure-release
line, and its obligation to undertake further inspection and maintenance of the
line depended on the existence of sufficient facts which would have caused a
reasonable person to do so. See, e.g., Monson v. Travelers Prop. & Cas. Ins. Co.,
955 So. 2d 758, 761 (La. Ct. App. 2007) (recognizing article 2317.1 does not
make an owner of a thing “the insurer of [its] safety”). Plaintiffs have not
pointed this court (or the magistrate judge) to any facts which would have
caused a reasonable person in Rock-Tenn’s position to conduct further
inspection or maintenance of the pressure-release line. Under Rock-Tenn’s
operating procedures, Martin Transport’s drivers were required to, and
apparently did, check that the pressure-release line was “free from defects and
void of other materials” prior to each delivery. 5 Martin Transport’s drivers
delivered acid to the mill at least daily, often twice daily, without ever
apparently notifying Rock-Tenn of any defect in the pressure-release line. In
the absence of any countervailing evidence to suggest that a reasonable person
in Rock-Tenn’s position would have undertaken further inspection or
maintenance of the pressure-release line, there is no basis for imputing Rock-
Tenn with constructive knowledge of an alleged defect in that line. 6



       5 Plaintiffs do not argue, much less cite any authority for the proposition, that Rock-
Tenn’s duty to maintain or inspect the pressure-release line was non-delegable.
       6 In apparent recognition of the absence of countervailing evidence, Plaintiffs argue

that it would violate their due process rights to affirm the magistrate judge’s grant of
summary judgment on the basis that they have not produced sufficient summary judgment
evidence on the issue of reasonable care because they were not provided any notice that issue
was before the magistrate judge. This argument, however, is relegated to a single footnote
and consequently has been waived. See Arbuckle Mountain Ranch of Tex., Inc. v. Chesapeake
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                                       No. 16-30112
       Even assuming Plaintiffs had presented countervailing evidence to
suggest that the exercise of reasonable care required Rock-Tenn to conduct
further inspection and maintenance of the pressure-release line, Plaintiffs
have failed to provide any evidence demonstrating that the alleged clog was of
such a character or existed for such a period of time that it would have been
detected by reasonable inspection and maintenance. The pressure-release line
was apparently unclogged hours prior to Dawson’s June 5th accident and
apparently unclogged hours after that accident, when deliveries were made to
the mill without incident. Moreover, Dawson was required to, and apparently
did, check that the pressure-release line was “free from defects and void of
other materials” immediately prior to his June 5th accident.                    These facts
suggest that, if a clog did, in fact, cause Dawson’s accident, the clog developed
in the course of mere minutes or hours. Plaintiffs do not dispute this conclusion
and offer no explanation—much less evidence—for how a reasonable
inspection or maintenance routine would have detected such a transitory clog.
Indeed, Plaintiffs did not offer any evidence as to what a reasonable inspection
or maintenance routine would have entailed.
       After this matter was raised at oral argument, Plaintiffs filed a letter
brief citing the deposition testimony of Rock-Tenn’s expert, John Z. Wlascinski,
as evidence that, had Rock-Tenn performed reasonable inspection and
maintenance of the pressure-release line, Rock-Tenn would have discovered
the alleged clog in the pressure-release line. Yet that testimony was not cited



Energy Corp., 810 F.3d 335, 339 n.4 (5th Cir. 2016) (“Arguments subordinated in a footnote
are ‘insufficiently addressed in the body of the brief,’ and thus are waived.” (quoting Bridas
S.A.P.I.C. v. Turkm., 345 F.3d 347, 356 n.7 (5th Cir. 2003))). Regardless, Plaintiffs’ argument
is meritless. As demonstrated supra, the issue of reasonable care and constructive knowledge
are inextricably intertwined, and Rock-Tenn’s motion for summary judgment put Plaintiffs
on sufficient notice of the need to address the issue of reasonable care by expressly pointing
out the absence of evidence that Rock-Tenn breached its duty to exercise reasonable care and
by discussing article 2317.1’s requirement of constructive knowledge.
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in Plaintiffs’ opposition to Rock-Tenn’s motion for summary judgment. In fact,
that testimony appears in the record as an appendix to an opposition to a
motion in limine filed more than two months after Plaintiffs filed their
opposition to Rock-Tenn’s motion for summary judgment. Thus, it cannot
furnish a basis for reversing the magistrate judge’s grant of summary
judgment. See Fed. R. Civ. P. 56(c)(1)(A) (requiring a party who asserts that a
fact is genuinely disputed to support the assertion by “citing to particular parts
of materials in the record”); see also, e.g., Malacara v. Garber, 353 F.3d 393,
405 (5th Cir. 2003) (holding that evidence that was not referred to in non-
movant’s opposition to summary judgment was not properly before the district
court on summary judgment and would not be considered on appeal). 7
       In their brief, Plaintiffs discuss at length several cases which they assert
illustrate the magistrate judge’s error in granting summary judgment. 8 But



       7   Plaintiffs did cite Wlascinski’s deposition testimony in their motion for
reconsideration, and the magistrate judge appears to have considered his testimony before
denying that motion. However, Plaintiffs do not separately address the denial of their motion
for reconsideration in their brief. Accordingly, Plaintiffs have waived any argument that the
denial of that motion was improper in light of Wlascinski’s deposition testimony. See Fed. R.
App. P. 28(a)(8)(A); see also, e.g., Nat’l Bus. Forms & Printing, Inc. v. Ford Motor Co., 671
F.3d 526, 533 (5th Cir. 2013) (recognizing that a party waives an issue by failing “to
meaningfully address it in its briefing”). Regardless, the outcome would be the same if
Wlascinski’s deposition testimony were considered. In his deposition, Wlascinski testified
that Dawson’s June 5th accident would not have been prevented by routine inspection and
maintenance, but conceded that, if the accident was, in fact, caused by a clog in the pressure-
release line, it may have been prevented by such inspection and maintenance. Because
Wlascinski’s deposition testimony was admittedly not based on “any studies, literature,
learned treatises, [or] anything of that nature” and, in any event, did not take the possibility
of detection of the alleged clog in the pressure-release line out of the realm of mere
speculation, it could not defeat Rock-Tenn’s motion for summary judgment. See, e.g., Brown
v. City of Hous., 337 F.3d 539, 541 (5th Cir. 2003) (“Unsubstantiated assertions, improbable
inferences, and unsupported speculation are not sufficient to defeat a motion for summary
judgment.”)
        8 See Matthews v. Red River Entm’t of Shreveport, LLC, No. 12-1188, 2013 WL

1932847 (W.D. La. May 8, 2013); Robert v. Turner Specialty Servs., LLC, 182 So. 3d 1069 (La.
Ct. App. 2015); Powell v. Chabanais Concrete Pumping, Inc., 82 So. 3d 548 (La. Ct. App.
2011).
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those cases do not support Plaintiffs’ position. Instead, they demonstrate the
type of evidence Plaintiffs could have presented, but failed to present, to avoid
summary judgment. 9
B. Res Ipsa Loquitur
       The res ipsa loquitur doctrine “is a rule of circumstantial evidence that
infers negligence on the part of defendants.” Lawson v. Mitsubishi Motor Sales
of Am., Inc., 938 So. 2d 35, 44 (La. 2006) (quoting Cangelosi v. Our Lady of the
Lake Reg’l Med. Ctr., 564 So. 2d 654, 660 (La. 1989)). Three criteria must be
satisfied to invoke the doctrine: “(1) the injury is of the kind which does not
ordinarily occur in the absence of negligence on someone’s part; (2) the evidence
sufficiently eliminates other more probable causes of the injury, such as the
conduct of the plaintiff or of a third person; and (3) the alleged negligence of
the defendant must be within the scope of the defendant’s duty to the plaintiff.”



       9  Specifically, in Powell, the plaintiff demonstrated the defendant’s constructive
knowledge by presenting expert testimony that the defect in the thing at issue was a known
wear item that would fail if not replaced and that the item’s wear could have been confirmed
by mere visual inspection. 82 So. 3d at 557–58. Here, Plaintiffs have not pointed this court
(or the magistrate judge) to any evidence demonstrating that the alleged clog in the pressure-
release line was caused by wear in the pressure-release line or that the alleged clog could
have been detected by mere visual inspection. In fact, the record is devoid of any evidence
regarding the age or lifespan of the pressure-release line at issue. Therefore, unlike Powell,
there is no evidentiary basis to conclude that the pressure-release line warranted inspection
and maintenance beyond that conducted by Martin Transport’s drivers prior to delivery. In
Robert, the plaintiffs demonstrated the defendant’s constructive knowledge by presenting
evidence that the defendant was requested to check its equipment (and apparently evidence
that the defect in its equipment should have been found on inspection). 182 So. 3d at 1071,
1074–75. Here, Plaintiffs have not presented any evidence of complaints or issues with the
pressure-release line prior to Dawson’s June 5th accident (or, as demonstrated supra, that
the alleged clog in the pressure-release line could have been found on inspection). Finally, in
Matthews, the plaintiff demonstrated the defendant’s constructive knowledge by introducing
evidence that the defendant failed to conduct an inspection for the specific defect at issue in
compliance with the manufacturer’s recommendation. 2013 WL 1932847, at *2–5. Plaintiffs
have offered no evidence that the manufacturer of the pressure-release line in this case (or,
for that matter, any manufacturer of any pressure-release line) recommended inspection or
maintenance, let alone inspection or maintenance beyond that provided by Martin
Transport’s drivers before delivery.
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                                  No. 16-30112
Linnear v. CenterPoint Energy Entex/Reliant Energy, 966 So. 2d 36, 44 (La.
2007); see also Restatement (Second) of Torts § 328D (Am. Law Inst. 1965)
(recognizing the same three criteria for the application of the doctrine of res
ipsa loquitur).
       A plaintiff usually satisfies the res ipsa loquitur criteria by showing that
the instrumentality that caused the plaintiff’s injury, or all reasonably
probable causes of the plaintiff’s injury, were under the exclusive control of the
defendant. See Cangelosi, 564 So. 2d at 666; see also Restatement (Second) of
Torts § 328D cmt. g.      However, such a showing is not necessary for the
application of res ipsa loquitur. See Cangelosi, 564 So. 2d at 666; see also
Restatement (Second) of Torts § 328D cmt. g. Instead, the essential question
is “whether the probable cause [of the accident] is one which the defendant was
under a duty to the plaintiff to anticipate or guard against.” Restatement
(Second) of Torts § 328D cmt. g; see also Spott v. Otis Elevator Co., 601 So. 2d
1355, 1362 (La. 1992) (recognizing the doctrine of res ipsa loquitur applies
when “the circumstances are such that the only reasonable and fair conclusion
is that the accident was due to a breach of duty on defendant’s part”). In the
context of article 2317.1, this means that the doctrine of res ipsa loquitur
cannot be used to infer negligence on the part of an owner or custodian of a
thing where it is at least equally probable that the defect in that thing was not
of such a character or had not existed for such a period of time to allow the
owner or custodian to discover it in the exercise of reasonable care (i.e., where
the owner or custodian lacks constructive knowledge of the defect). See, e.g.,
Broussard v. Voorhies, 970 So. 2d 1038, 1045 (La. Ct. App. 2007) (concluding
that doctrine of res ipsa loquitur “did not apply to establish the required proof
of constructive knowledge”); see also Restatement (Second) of Torts § 328D cmt.
g, illus. 7.
       Here, Plaintiffs have not demonstrated that all reasonably probable
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                                     No. 16-30112
causes of Dawson’s June 5th accident were under Rock-Tenn’s exclusive
control.    Specifically, the evidence does not sufficiently eliminate either
Dawson’s or Brown’s conduct as a cause of the June 5th accident. Moreover,
even if we agreed with Plaintiffs that the most probable cause of Dawson’s
June 5th accident was a clog in the pressure-release line, it is at least equally
probable that the clog developed in so short a period of time before Dawson’s
accident that Rock-Tenn had no reasonable opportunity to discover and correct
it. As the magistrate judge appropriately recognized, “[t]here was evidence
from which a reasonable person could find that there was miscommunication
between Dawson and Brown, or that Brown did not properly open the valve, or
that the line did become clogged but with no signs or advance warning that
would render Rock-Tenn at fault.” The magistrate judge, therefore, correctly
concluded that the doctrine of res ipsa loquitur could not be used to infer
negligence on Rock-Tenn’s part.
C. Leave to Supplement
       Plaintiffs assert that the magistrate judge abused its discretion in
denying them leave to supplement their opposition to Rock-Tenn’s motion for
summary judgment with the deposition of Rock-Tenn’s expert, Wlascinski.
Plaintiffs, however, never sought leave to supplement their opposition.
Rather, they sought leave to supplement their own motion for partial summary
judgment, and as discussed supra, filed Wlascinski’s deposition transcript in
connection with their opposition to a subsequent motion in limine. Because
Plaintiffs never sought leave to supplement their opposition (as they contend),
the magistrate judge clearly acted within his discretion in not granting them
leave. 10


       10 Plaintiffs do not address whether the court can or should treat their request for
leave to supplement their own motion for partial summary judgment as a request for leave
to supplement their opposition to Rock-Tenn’s motion for summary judgment. Consequently,
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                                       No. 16-30112
D. Faulty Design and Procedure Claim
       Plaintiffs assert that, even if the magistrate judge’s rulings on Plaintiffs’
“[a]rticle 2317.1 claims and [their] res ipsa loquitur claims” were correct, the
magistrate judge erred in failing to address Plaintiffs’ “faulty design and
procedure claim.” That was a “freestanding claim,” Plaintiffs assert, to which
“the notice requirements of [a]rticle 2317.1 are not applicable.”                     While
conceding that their opposition to Rock-Tenn’s motion for summary judgment
did not address the “faulty design and procedure claim,” Plaintiffs assert that
they cannot be faulted for not doing so because Rock-Tenn did not seek
summary judgment on that specific claim, as required by Federal Rule of Civil
P. 56(a).
       Rock-Tenn moved for complete summary judgment. Thus, contrary to
Plaintiffs’ argument, Rock-Tenn adequately identified “each claim” upon which
it was seeking summary judgment (i.e., the entire case). See Fed. R. Civ. P.
56(a) advisory committee’s note to 2010 amendment (recognizing that the
“each claim” language upon which Plaintiffs rely was added to make clear that
partial summary judgment could be sought “as to a claim . . . or part of a
claim”). Moreover, Plaintiffs’ argument ignores the fact that their complaint
asserted a single claim of negligence, and Rock-Tenn’s motion for summary
judgment addressed each of the alleged acts of negligence asserted in Plaintiffs’
amended complaint. Consequently, Plaintiffs have failed to demonstrate any




the issue has been waived. See Fed. R. App. P. 28(a)(8)(A); see also, e.g., Nat’l Bus. Forms &
Printing, 671 F.3d at 533. Regardless, any error in the magistrate judge’s handling of
Wlascinski’s deposition was harmless. See Fed. R. Civ. P. 61; see also Ayers v. Peterson, 130
F. App’x 666, 669–70 (5th Cir. 2005) (concluding that any error in denying leave to
supplement appendixes to opposition to motion for summary judgment was harmless). As
discussed supra, Wlascinski’s deposition testimony would not have precluded summary
judgment, and therefore Plaintiffs’ substantial rights were not affected by the magistrate
judge’s handling of that testimony. See Fed. R. Civ. P. 61; Ayers, 130 F. App’x at 669–70.

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                                      No. 16-30112
reason why their opposition did not articulate, as they were required to do, the
manner in which their faulty design and procedure evidence supported their
sole negligence claim. See, e.g., Willis v. Cleco Corp., 749 F.3d 314, 317 (5th
Cir. 2014) (recognizing non-movant’s duty to articulate the manner in which
evidence supports their claim). The magistrate judge, therefore, did not err in
failing to address Plaintiffs’ “faulty design and procedure claim.” 11
                                  IV. CONCLUSION
       For the foregoing reasons, we AFFIRM the magistrate judge’s grant of
summary judgment in favor of Rock-Tenn.




       11 Although Plaintiffs do make reference in reply to the fact that they briefed their
“faulty design and procedure claim” in their motion for partial summary judgment, Plaintiffs
do not specifically address whether the argument and evidence provided in support of their
motion for partial summary judgment can substitute for their opposition to Rock-Tenn’s
subsequent motion for summary judgment. Consequently, the issue has been waived. See
Fed. R. App. P. 28(a)(8)(A); see also, e.g., Nat’l Bus. Forms & Printing, 671 F.3d at 533.
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