Funny how any other time, that might make me feel kinda stupid, doing that in front of a 13-year-old, but for that song, I didn't care. It's one of the most powerful bits in music, in my opinion, and always gives me a great feeling. Luckily, I think he agreed, so he didn't think it was weird that I acted as I did. ;)
Anyway, I'll be putting together a mix CD of "Floyd's Greatest" in the near future to give him a primer before I toss him into, say, The Final Cut or Animals. I'll save the early days for later (it helps to already be a fan to get into Saucerful of Secrets or Ummagumma). I do believe I've created a fan, though.