I've got Billy Cotton's version in my little cupboard-under-the-stairs, with Bill and Breezy (no, not that one!) cross-talking about what they were going to do when the war was over ("I'm going to tear down all those black-out curtains!"). Only one verse, sung straight and reprised after the "comic" bit in an inebriated manner. Made a big impression on me when I first heard it at the age of nine.