As a teenage welterweight out of south Florida, Mickey Rourke learned how to fight. His willingness to throw punches-and his ability to take them-served him well as both a boxer and an actor. Until, of course, it didn't, and he found himself knocked out of the ring, exiled from Hollywood, down for the count, and alone, with only a rescued Chihuahua named Loki still in his corner. So what did Mickey Rourke do? He got back up.