To me, this just might be the best episode of QI ever (and that says quite a lot, doesn’t it?)
Incidentally, should you miss it, here is the second part:
Now, if someone could just syndicate this show to just about every TV channel on earth, the world would be a much more agreeable place. Smarter, more erudite, and less superstitious. In short, A Good Thing.
Please make it so.