Schooling Around #4: Robot Riot!
Andy Griffiths is the New York Times bestselling author of The Day My Butt Went Psycho!, Zombie Butts from Uranus!, Butt Wars!: The Final Conflict, Just Stupid!, Just Wacky!, Just Annoying!, Just Joking!, and Just Disgusting!  He lives in Australia with his wife, their kids, and his butt.