Many years ago there was this bloke by the name of Kissinger (no, not the famous one) he got fed up with people joking about his name so he had it changed by Deed Poll from Kissinger to Thompson. After a couple of years he got fed up again and so had it changed to Wilson. It seems that he had a problem with that too after a few years, so he changed it again - in fact, he changed it so many times over the years, that people started singing this song . . .