Calvin and Hobbes by Bill Watterson for July 02, 1989
Calvin: Uh-oh. The sky is deep orange! Calvin's skin is a pale green! Yellow flowers are now blue! Every color is the oppsite of what it should be! Calvin has been transformed to a color film negative! His only hope is to be processed by a 1-hour photo finisher! Developer! I need developer! Dad: Doggone it, Calvin! That's another picture ruined! Can't you look pleasent for 1/500th of a second.