In its ongoing mission to illuminate improper behavior, truTV Presents: World's Dumbest... brings you 20 of the World's Dumbest Partiers. From a proud celebrant marking Canada Day by breaking beer bottles on his head, to a naked john running after the prostitute who stole all his clothes, these are the memories that will linger after the hangover has passed. With commentary from Danny Bonaduce, Todd Bridges, Leif Garrett and the rest of our hard-partying cast.