I dropped a load of lemonade into a C64 (cleaned up fine ;-)), and wedged my C128 into an overstuffed wooden box under the bed - which was fine until my other half jumped into bed, it broke off 6 keys :-(
It's easy to make a silly mistake if you're in a hurry or tired, but at least you made the effort to put it right!
Not so much stupid as bizarre was when my Sister fell on my Vic20 when it was sat on the living room carpet, the case was cracked so me and a friend rebuilt it into a case made of (glued together) lego, where it lasted for the next 10 years until I found a nice one to replace it ...
