Injured while boarding an elevator, plaintiff relied on res ipsa loquitur to establish her prima facie case against the elevator's owner, manager and servicer. To apply the doctrine, plaintiff had to show: 1) the accident was one that "ordinarily bespeaks negligence"; 2) the defendant exclusively controlled the instrumentality that caused the accident; and 3) the injury did not result from the plaintiff's own voluntary act or neglect. Because plaintiff could not satisfy the third prong, her suit was dismissed on summary judgment. On appeal, she asks the court to follow out-of-state authority and discard the third prong as a matter of law, contending it defeats the purpose of the Comparative Negligence Act, N.J.S.A. 2A:15-5.1 to -5.8. The court declines to do so, and affirms summary judgment, because it is not free to undo settled Supreme Court precedent absent an indication the Court would endorse the change; and the rule regarding plaintiff contribution retains some vitality, notwithstanding adoption of comparative responsibility.