Instead of the famous farting how about a man who became famous for farting on stage? I don't know how many of you have ever heard of Le Petomane but here is a link. I originally found out about this reading one of the Uncle John's Bathroom Readers. If you are unfamiliar with these books, you should look for them the next time you are at the bookstore, they are great for just that...reading while sitting and taking care of personal business!
http://www.retroactive.com/jan98/petomane.html