in reply to Since I began using computers, I have hurt my:
Hey, I forgot my "programming accident". While eating lunch at the workplace cafeteria the answer to a difficult gnawing problem finally came to me in a flash. Unfortunately "Ahh!" was immediately followed by "Ow!" as I finished closing my mouth on the latest bite, only having forgotten to remove fork first. Cow-orkers were not as interested in the discovered solution as much as how many more pieces of the front tooth I was going to discover.
Fortunately dentistry has this marvelous 'patch' procedure they call 'crowns'. And it only took three tries before the biting program stopped throwing faults!