According to the rules, if you are using unarmed strikes without the Improved Unarmed Strike feat, you do nonlethal damage. I am aware that you need to exceed the targets maximum hit points to do Lethal damage, but, what about coup de grace?
follow this scenario: a fighter has twenty maximum hit points and ten points of lethal damage. he gets in a fist fight with someone. that person does 11 nonlethal damage, knocking them out. does that person now get to do coup de grace with their fists? the damage is nonlethal, how does that effect the fortitude save against death?
input please.