Throwing a glass cup against a wall or punching a window so that seemingly invisible barrier is shattered. Perhaps punching a mirror that holds your reflection like that scene with Martin Sheen in Apocalypse Now. Maybe even launching your fist through the computer screen you're looking at right now. Have you ever felt like breaking something and then came to realize how much of a mess it would make of your fist or your surroundings or how much it would cost to replace said item so you refrain altogether? For that matter have you acted on your urge and just did it regardless of consequence?