  Aquinas also supports the common view that at least some coercion affects the coercee's responsibility or blameworthiness for what he does as a result of coercion. He holds that one is not to be blamed for things done non-voluntarily. Insofar as violence undercuts the voluntariness of one's doings, as suggested above, one is not to be blamed for them. Violence appears able to coerce in two ways: when used directly against one's body (“a man may be dragged by force: but it is contrary to the very notion of violence, that he be dragged of his own will” (Aquinas, ST, I.II Q6 A4)); and when used in a way that disables one's will (“the will can suffer violence, in so far as violence can prevent the exterior members from executing the will's command” (Aquinas, ST, I.II Q6 A4)). Interestingly, however, the  threat[1]  of violence that causes one to act from fear, or to avoid that violence, does not make an act involuntary, on Aquinas' understanding. So only some uses of violence to hinder another's actions have the effect of exempting the person targeted from blame for things done as a result of  violence.[2]