Utah Unreasonable Use (Assumption of a Known Risk) is an affirmative defense in Utah law that allows a defendant to be relieved of liability if they can prove that the plaintiff voluntarily assumed the risk of harm they experienced. This defense is based on the idea that the plaintiff knew the risks associated with the activity or condition, and voluntarily chose to participate in it or remain in it. The primary types of Utah Unreasonable Use (Assumption of a Known Risk) are: * Express Assumption of Risk: This occurs when the plaintiff has voluntarily assumed the risks associated with the activity or condition either verbally or in writing. * Implied Assumption of Risk: This occurs when the plaintiff's voluntary conduct in a situation indicates that they have assumed the risk of harm, even if they have not expressed it. In order for the defense to be successful, the defendant must prove that the plaintiff was aware of the risks associated with the activity or condition, and voluntarily chose to participate in it or remain in it. Additionally, the defendant must also prove that the plaintiff's decision was reasonable given the circumstances.