Calvin and Hobbes by Bill Watterson for May 21, 1991

Transcript:

Calvin: "I'm not eating this green stuff. YECCHH!" Dad: "Good idea, Calvin. It's a plate of toxic waste that will turn you into a mutant if you eat it" Mom: "There has GOT to be a better way to make him eat!" Calvin: "Ahhhhh... I can feel it working..."