"If You Can't Hear It, It Doesn't Smell."

Why is breaking wind so funny? What is it about the release of a hot blast of air through clenched butt cheeks that makes us laugh?

The more formal the setting—be it in church, listening to a speech on World Hunger, Global Warming or listening to the National Anthem—the funnier the fart is.

Who was the first person to pass gas? When was it first considered funny? Why do women act like it isn't funny, but when in the company of their girlfriends, laugh harder at farts than men do? Are all fart...