Calvin and Hobbes by Bill Watterson for February 07, 1992
Calvin: Help help! My head somehow got twisted completely around! I'm facing backward! Look! I can read the tag on my shirt! I can see down my own back! ...Oh, wait. There's my belly button. I must just have my shirt on backward. Never mind. I've got my head on straight after all. Mom: Oh. I wouldn't go that far.