OK, this may be a stupid question, but if you break somone's limb, say the fingers or wrist (a small joint is mainly what I'm thinking), if the person is so pumped up full of either adrenaline or drugs (and so assuming he ignores all pain), can they actually make that limb function? For example, if you break a guy's thumb and forefinger, if he is so driven can he still grab you with it or is it anatomically not possible to use that hand anymore?