Bigger or stronger won't stop a bullet. Anyone who cheats in a way that seriously damages the other, in a world that has guns in it, is a f*cking idiot. EDIT:

Bigger or stronger won't stop a bullet. Anyone who cheats in a way that seriously damages the other, in a world that has guns in it, is a f*cking idiot. EDIT: This is known as "deterrence" if the potential malefactor is fairly bright and "evolution in action" if not.