What Happens If

Geoffrey tells Bungle not to touch the dominos he's lined up on the table while he goes out of the room, but Bungle wonders what will happen if he touches them and then finds out. George wonders what will happen if he tips out his container of marbles. The marbles all roll off the table onto the floor, but before he can pick them all up Rod and Freddy come into the room and fall over on them. Then Geoffrey and George notice an unpleasant smell which seems to be coming from Zippy. They discover it's because Zippy hasn't changed his socks for days, as they're his favourite yellow pair. Geoffrey explains that if you don't wash your clothes they become dirty and smelly. Rod, Jane and Freddy sing "Blowing Up Balloons" and Geoffrey shows Bungle, Zippy and George a little magic trick.