I'm sure we've all done it once or twice. You know the kind of thing, the computer isn't doing quite what you'd like it to do, and all of a sudden you need to buy a new keyboard because the old one is in pieces. It's bad enough at home, but you feel a right cnut at work when you've got to try and explain why there's a fist sized hole through your monitor. So what kind of things have you destroyed in a fit of temper? And what kind of excuses have you used to explain it away?