"If they accept the prosecution's version that George Zimmerman was the instigator, well then he can't rely on self-defense. You can't start a fight and say,'You know what? I'm not doing well here, I'm going to get my gun and blow this guy away.'"When getting hit in the face one does not have the time to evaluate an injury before action. Take care of the situation then evaluate injury. The amount of physical trauma should not even matter. The only thing that counts is getting hit in the face in the first place.