What is it about flatulence and all jokes surrounding it that people just can't get enough of? It's funny when we're little kids, and then suddenly you grow up and realize it's still hilarious. Has it always been this way?It seems so. Fart jokes in literature date back to at least the 5th century BC. One of my favorite anecdotes comes from Elizabethan England. It is said that Edward de Vere, 17th Earl of Oxford—and favorite alternative author of Shakespeare's works—was once bowing to the Queen when he accidentally passed wind. So ashamed was the Earl that he fled England for nearly a decade. Upon returning to court, Queen Elizabeth exclaimed, "My Lord, I had forgot the Fart."Thankfully for those of us who just can't get enough, we have the whoopee cushion, perhaps the oldest practical joke in the book. Everyone's familiar with this small, classic prank, but how much do you know about them, really?