Dear diary: Serendipity continues to learn about and be fascinated by pranks. Today, Petey pranked Sarah by pulling the old snakes-in-a-peanut-brittle-jar gag. Sarah cannot take a prank as well as she gives one out, and punched Petey in the eye. Petey says it was totally worth it. Andy, meanwhile, is mostly concerned about the well-being of the snakes.