Calvin and Hobbes by Bill Watterson for May 05, 1987
Calvin: Ahoy! Toss the rope ladder down! Hobbes: What's the password? Calvin: "Tigers are mean! Tigers are fierce! Tigers hace teeth and claws that pierce!" "Tigers are great! They can't be beat! If I was I tiger, that would be neat!" He can climb the tree without the ladder, so he got to make up the password. Hobbes: Go on, what's the third verse?