I always punch myself on the thigh, or shout at the games console if I get pissed off, lambasting the game for its crapness at the given moment. However my mate who I was once playing online with seems to develop anger problems when stepping near his Xbox360. We were playing online once, I scored an apparently flukey goal, he got pissed off, and I can honestly say I heard the thud of the controller hitting the floor through the headset, as he slammed it on the ground. A few hours later we were in PC World... he was spending £20 or so on a new controller.