I was driving my mom from Phoenix to Laughlin, NV (3 hr drive) and she brought along a CD of John Philip Sousa songs. On comes the Monty Python theme and I start 'singing' along, enthusiastically. She's looking at me like I'm nuts (she's right) and amazed I even knew it. Then I do the phhfffttt
! at the end, cuz that's how I learned it (hehe). She about dies laughing. I really had no idea it was a 'real' song.