                                                          [DO NOT PUBLISH]


            IN THE UNITED STATES COURT OF APPEALS

                     FOR THE ELEVENTH CIRCUIT           FILED
                      ________________________ U.S. COURT OF APPEALS
                                                          ELEVENTH CIRCUIT
                                                           DECEMBER 2, 2009
                             No. 09-10144
                                                           THOMAS K. KAHN
                       ________________________
                                                               CLERK

                D. C. Docket No. 06-01864 CV-ORL-28DAB

DART INDUSTRIES, INC.,

                                            Plaintiff-Counter-Defendant-Appellee
                                                                Cross-Appellant,

                                   versus

DAVID ACOR,
individually,
                                                    Defendant-Counter-Claimant
                                                               Cross-Appellee,

UNITED INVENTORY SERVICE, INC.,
d.b.a. UIS Polymers,
                                     Defendant-Counter-Claimant-Appellant
                                                          Cross-Appellee.
                       ________________________

                Appeals from the United States District Court
                     for the Middle District of Florida
                      _________________________
                            (December 2, 2009)

Before MARCUS, FAY and ANDERSON, Circuit Judges.
PER CURIAM:

       After oral argument and careful consideration, we conclude that the

judgment of the district court is due to be affirmed in all respects. With respect to

United Inventory Service’s (“UIS”) counterclaim against Dart for negligence, we

can assume arguendo that Dart retained a duty as owner of the building to maintain

the fire suppression system, and we can even assume arguendo that Dart may have

been negligent in that regard. However, UIS’s negligence claim fails for several

reasons, the most obvious of which is that there is insufficient evidence that an

operational fire suppression system would have reduced UIS’s losses.1 In other

words, UIS’s negligence claim fails for insufficient evidence of causation. The

only argument asserted on appeal by UIS to challenge the district court’s

insufficient evidence of causation holding is that the district court erroneously

       1
                Actually, we believe that both Dart, as owner, and UIS, as tenant, had duties with
respect to the fire suppression system. We agree with the district court that, under §4.1.5 of the
relevant code, a duty was imposed upon UIS to evaluate the adequacy of the fire suppression
system when it changed the usage of the building. Although this duty was imposed upon UIS,
we doubt that it relieved Dart from the duties as owner imposed upon it by the same code. Thus,
we believe that both parties had a duty. Although UIS’s negligence with regard to its duty is
clearer in the evidence than is Dart’s, we can assume arguendo some negligence on the part of
Dart. However, even assuming arguendo some negligence on the part of Dart, as landlord, a
landlord is liable for harm resulting from a dangerous condition on the premises only if both the
landlord could have discovered the dangerous condition through reasonable diligence, and the
tenant injured as a result of the dangerous condition exercised reasonable care and diligence.
Roberts v. Tenn. Wesleyan College, 450 S.W.2d 21, 24 (Tenn. Ct.App. 1969). Thus, wholly
aside from UIS’s failure because of the lack of causation, its claim would also have failed on
account of its own negligence. For this same reason, UIS’s claim that Dart was negligent in
maintaining the electrical system fails. Moreover, we also believe UIS failed to adduce sufficient
evidence that Dart was negligent in maintaining the electrical system.

                                                2
excluded the testimony of Ken Bridges. In that regard, we readily reject UIS’s

challenge. We conclude that the district court did not abuse its discretion in

concluding that Ken Bridges was purporting to testify with respect to scientific or

technical matters, and thus did not qualify as a lay witness. See United States v.

Taylor, 17 F.3d 333, 338 (11th Cir. 1994).2

         For the foregoing reasons, we reject all of UIS’s arguments in its appeal. We

turn next to Dart’s cross-appeal.

         Dart argues that UIS is guilty of negligence per se because it failed to

evaluate the fire protection system for its capability to protect the new use – i.e.,

storage of combustible materials – to which UIS was putting the building.

Although we agree with Dart that the fire code imposed such a duty on UIS, and

although we agree that UIS failed to discharge that duty, Dart’s claim nevertheless

fails because Dart conceded that there was insufficient evidence that an operational

fire protection system would have reduced the losses suffered as a result of the

fire.3

         2
             We also conclude that the district court did not abuse its discretion in denying the
motion by UIS for a change of venue. See Palmer v. Brown, 376 F.3d 1254, 1257 (11th Cir.
2004).
         3
                In its responsive brief on appeal, UIS apparently reads Dart’s cross-appeal as
asserting - in addition to its per se negligence claim – a common law waste claim. As we have
noted, any negligence claim based on UIS’s failures with respect to the fire protection system fail
for insufficient evidence of causation. We are doubtful that Dart has fairly presented on appeal
any claim for waste based upon any other action or omission of UIS. Accordingly, we deem any

                                                 3
       For the foregoing reasons, the judgment of the district court is affirmed in all

respects.

       AFFIRMED.




other such claim to have been abandoned.

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