Shakespeare
Romeo and Juliet is one of the bawdiest plays the bard wrote, and one of the funniest. This comes in large part from the puns. The puns, largely coming from Mercutio and Nurse, were designed to entertain the cheaper seats in the theater, but would have brought a chuckle from even the nobility. Even today, modern audiences can't help but smile even in the most tragic scene when poor Mercutio is killed by Tybalt in a brawl and dies with a pun.