The Episode: Season 9, Episode 14 (Das Bus) The Gag: Nelson and Bart agree to race fruit, with the first person's fruit which rolls to the front of the bus winning Martin's lunch money. They roll the fruit, Bart says, "Go apple!", Nelson rolls the orange and says, "Go orange!", and in comes Ralph, placing his banana on the floor and shouting, "Go banana!" His immediate joy turns to sad confusion when, to his amazement, the banana does not roll along the floor of the bus. Brilliant.