It's just like being in a knife fight in a dirt-floor bar. If you want to fix a fella, the best way to do it is to get behind him and stick him in the back. It's the same in an air fight. If you want to kill that guy, the best thing to do is get around behind him where he can't see you...and shoot him. — Captain William O'Brian Quote, 357th Fighter Group, USAAF