Sideshow Bob
Bart sees Sideshow Bob in the street, where he unstraps himself from the underside of an old lady's car and is trampled by a parade that included several large elephants. Bart tries telling his parents, but Homer lazily dismisses his claims. During the night, Sideshow Bob reaches the houseboat and unmoors it from the dock. He ties up Homer, Marge, Lisa, Maggie and Santa's Little Helper so they cannot stop him. Sideshow Bob enters Bart's room and almost kills him right when Bart flees out the window and tries to escape, but he cannot jump off the boat since the river is filled with alligators and electric eels. Sideshow Bob catches up to Bart and corners him at the edge of the boat, offering him a last request before his supposed death. Having noticed a sign saying Springfield is fifteen miles away, Bart quickly has an idea: to stall for time, he compliments Sideshow Bob on his beautiful voice and asks him to sing the entire score of "H.M.S. Pinafore". Bob delivers a performance that includes several props, costumes, and backdrops.