Calvin and Hobbes by Bill Watterson for June 11, 1988
Calvin: Ok, out of the hammock. Hobbes: What do you mean? This isn't your hammock. Calvin: It's my turn. Hobbes: I was here first. It's your turn when I'm done. Calvin: If you won't get out, then I'm coming in with you. Hobbes: Like heck you are! Dad: This crummy hammock always sags.