LaFleur’s (plaintiff) right foot was injured at work. The company doctor told LaFleur that he had a sprained toe. LaFleur entered into a written settlement agreement and release with the company’s insurer (defendant), which stated that LaFleur could not seek additional benefits “because of this injury.” LaFleur was diagnosed with a rare arterial disease that resulted in the amputation of both of his legs. A doctor testified that LaFleur’s accident at work had injured his arterial system, which aggravated his preexisting arterial disease, and that the accident was causally related to the amputation of LaFleur’s legs. LaFleur sued for rescission of the release. The trial court entered judgment for the defendants, finding that LaFleur had simply made an incorrect prediction about future events when he signed the release.