It’s always best to walk away from a bar fight. Bad stuff happens when fists and beer combine. But if you’re forced into a scrap, remember to protect yourself at all times. “Nothing reeks more of inexperience than a guy with his hands down and chest out, jawing at someone,” says judo black-belt and Brazilian jiu-jitsu purple-belt Martin Rooney, C.S.C.S., founder of trainingforwarriors.com. But if you have to punch your way out, Rooney says, keep your hands up, a tight fist, and punch with the knuckles of your index and middle fingers.