Calvin and Hobbes by Bill Watterson for October 09, 1992
Transcript:
Calvin: Look how your tail flips around! I wonder which muscles control that. I can sort of clench my butt, but I don't think it could wiggle a tail. Hmm, how strange! I've never really thought about butt muscles before. Hobbes: Some things don't need the thought people give them.
I love how every single c&h strip has deep thought behind it