A clueless thief tried stealing some old man's bike from the shed in the back garden, only the old man was there and saw the thief. The thief got away with the bike (AFAIK) but it turns out the old man was a cartoon artist in his younger days, so drew an excellent cartoon of the thief. Police almost immediately got their man.
Oh, and the bike in question was an old 10-speed. Dude, you can get those for nothing! No use stealing one and getting caught into the bargain!