Background
Raya Nsheiwat sued Walmart for negligence after allegedly slipping and falling on a plastic clothes hanger while returning her shopping cart to a parking-lot cart corral. The trial was bifurcated into liability and damages phases, and all but two witnesses were sequestered.
Before trial, the district court excluded safety expert Russell Kendzior’s testimony and limited biomechanical expert Andrew Rentschler’s testimony to the damages phase. The jury returned a verdict for Walmart after the liability phase. Nsheiwat appealed the bifurcation, the sequestration of her “attorney-in-fact,” and the rulings on both experts.
The Court’s Holding
The Eighth Circuit affirmed. It first held that it had jurisdiction to review the bifurcation and sequestration issues even though Nsheiwat had not timely objected to the magistrate judge’s orders under Federal Rule of Civil Procedure 72(a). Nsheiwat raised both issues in her motion for a new trial, and the district court considered their merits.
The court found no abuse of discretion in bifurcating the trial because separating liability from damages promoted efficiency and economy, particularly where many witnesses would testify only about damages. It also upheld the sequestration of Shalabh Kumar, Nsheiwat’s “attorney-in-fact.” Even assuming his exclusion was erroneous, Nsheiwat showed no prejudice because her legal team had ample advance notice to obtain authority from Kumar or make alternative arrangements.
The court also upheld the expert-testimony rulings. Kendzior’s opinions—that removing the hanger would have prevented the fall and that Walmart should follow general safety practices—were common-sense matters that would not assist jurors, while the scope of Walmart’s legal duty was for the court. Any error in excluding his industry-standards testimony was harmless because the jury heard Walmart’s own, equally or more stringent safety policies. Rentschler’s report assumed that a hanger caused the fall without addressing alternatives, and his opinion that a hanger could cause a person to lose friction and fall likewise concerned common knowledge. Limiting his testimony to damages therefore was not an abuse of discretion.
Key Takeaways
- An appellate court may review a magistrate judge’s interlocutory ruling when the district court later considers that ruling’s merits, despite the absence of a timely Rule 72(a) objection.
- General safety opinions and straightforward cause-and-effect conclusions may be excluded under Rule 702 when jurors can evaluate them without specialized knowledge.
- An expert’s assumption about how an accident occurred is not proof of causation and may be excluded when it risks confusing or misleading the jury.
Why It Matters
The unpublished decision reinforces district courts’ broad discretion to structure tort trials, sequester witnesses, and exclude expert opinions that merely restate common sense. It also illustrates that evidentiary error will not justify a new trial when comparable evidence reached the jury or the appellant cannot show prejudice.