Humpty Dumpty sat on a wall, Humpty Dumpty had a great fall; All the King's horses and all the King's men, Couldn't put Humpty together again.
(ed: I drive my wife round the bend with the last line, as I manage to get the entire "Couldn't put Humpty Dumpty together again" instead of just "Humpty. She doesn't like it - but I think it sounds *much* better!)