Calvin and Hobbes by Bill Watterson for July 19, 1986
Calvin: The experiment has gone horribly wrong! Calvin has mutated into a giant fly! He zips about in parasitic hunger, dearching for decaying flesh! An unbearable stench fills the ar. The hideous bug zeroz in. Mmm! THis makes me hungry! Mom: Don't be gross. Just take out the garbage like I asked you, will you please?