Facts
- A DAPSCO-owned “gang truck,” driven by William McDonald, Jr., suffered recurring mechanical problems and stalled on March 7, 1990, while traveling uphill on Mississippi Highway 528 near Heidelberg.
- Around 6:30 p.m., as it was getting dark, the truck stalled in and blocked the entire eastbound lane; its engine died and the vehicle’s lights went off.
- The disabled truck was not marked with flares, reflectors, lights, or other warning devices, and evidence indicated DAPSCO trucks were not equipped with statutory warning equipment for breakdowns.
- Sam E. McCormick, driving a pickup truck, collided with the rear of the stalled truck and sustained serious injuries.
- McCormick sued McDonald and DAPSCO for negligence; after McCormick later died of unrelated causes, Mary Thomas (administratrix of his estate) continued the action.
- At trial, the court refused plaintiff’s requested negligence-per-se instructions based on Mississippi statutes governing warning devices for disabled trucks and nighttime operation equipment, and instead gave a more general negligence instruction that added a “reasonable time” concept for removing the truck.
- The jury returned a verdict for defendants; Thomas appealed.
Issues
- Whether the trial court erred by refusing jury instructions stating that violation of Miss. Code Ann. §§ 63-7-71 and 63-7-69 could constitute negligence per se if the jury found the statutory predicates satisfied.
- Whether the trial court’s substitute instruction improperly altered the statutory standard by adding an extra-statutory “reasonable time” concept, thereby obscuring the negligence-per-se theory.
Decision
- The Supreme Court of Mississippi reversed the defense verdict and remanded for a new trial.
- The court held Thomas was entitled to negligence-per-se instructions tied to Miss. Code Ann. §§ 63-7-71 and 63-7-69 because there was evidence supporting submission of statutory violations to the jury.
- The court held the trial court’s substitute instruction was confusing and improper to the extent it displaced the statutes’ specific duties with a “reasonable time” formulation.
- The instructional error was prejudicial because it prevented the jury from being told the legal effect of a statutory violation central to the plaintiff’s theory.
Legal Principles
- When a safety statute defines a specific duty, and the plaintiff is within the protected class suffering the type of harm the statute aims to prevent, evidence of a statutory violation warrants a negligence-per-se jury instruction.
- Factual disputes about whether statutory conditions are met (including temporal or environmental conditions) are ordinarily for the jury when supported by record evidence.
- A party is entitled to have the jury instructed on a legally valid theory of the case supported by evidence; a trial court may not replace statutory standards with a materially different, non-statutory formulation that dilutes or obscures the theory.
Conclusion
The court ordered a new trial because the jury should have been instructed that proven violations of Mississippi’s truck-warning and nighttime equipment statutes could constitute negligence per se, and the trial court’s substituted “reasonable time” instruction improperly displaced the statutes’ mandatory duties.