Might be just an urban legend, but I heard that there is a bungie jump setup somewhere where the supervising guy has a rather twisted sense of humour. Gets the jumper all strapped in, double-checks everything, gives instructions on what to do, checks everything again, then taps them on the back to say OK to jump. Just as they lean forward past the angle of no return, he shouts "NO....WAIT!!"
Just imagine.....:oo: