Who does not know the small sliding puzzles that you get as a giveaway from your bank or as a booby prize at the lottery booth at the fun fair (although you originally wanted to win the oversized purple plush teddy, so that you finally have some piece and quiet, because the girlfriend/children/voices in the head whine on about it!!!). Not only did the puzzles constantly tilt, no, once done they were most of the time assigned their final task (trash can) or thrown into the hat of the next street musician. And deservedly so.