Calvin and Hobbes by Bill Watterson for December 19, 1988
Transcript:
Calvin: Do you think monsters are under the bed tonight? Hobbes: I don't know. How can you tell without looking? Calvin: One way is to tell a story about a little kid getting mauled and eaten alive. Hobbes: How does that tell you if you have monsters? Calvin: Sometimes they laugh.
Or drool, or sigh. Those help too.