First, choose one defense that you read about and explain why that defense exists. Be mindful that this question is prescriptive and not merely descriptive. Don't simply describe what this defense is or how it operates. Second, explain whether making a valid defense to an intentional tort claim should operate as excusing the completed tort or whether a valid defense essentially means the tort was not completely proven by the plaintiff. Finally, there seems to be a difference in the ideas of consent and informed consent. What is the difference in these two concepts and explain why "informed consent" should be carefully studied as a different concept. Your answers should be justified by material from your reading. You may add additional scholarly sources as you see fit.