Homer is driving along when nature strikes. So he stops at the "Springfield Gas" gas station and visits the little boys room. He's doing his business while singing a little melody when he hears somebody enter the washroom. Not wanting anyone to hear his embarrassing tune, he shuts up. Little did he know what was in store for him. Flamboyant Smithers and his goons had come for a surprise "visit". And they're "visiting" more of Homer than he would like.