Boy, this reminds me of a joke... Ever started one of those long shaggy-dog story kinds of jokes and just as you get to the punchline, the other person figures out that they've heard it before? And isn't that annoying? Well, I was telling the joke this thread reminds me of, and before I got to the punchline the guy jumps in with the punch line - only it wasn't MY punchline, and it was even funnier than the one I'd been planning to use!
Anyway, if anyone wants to read the joke with drumheads in it, let me know..