Broken controllers, holes in walls, excessive yelling and swearing.
While I'm sure we would all like to consider ourselves here calm, cool, and collected that might not always hold true when playing a frustrating game. Maybe you're having a particularly frustrating day, and nothing is going your way. Maybe your teammates (and totally not you) are doing terrible and you're losing a multiplayer game because of it. Maybe you just died for the 50th time to a boss that did some unblockable...