After The Chipmunks disrupt a visit with Mrs. Frumpington by breaking a window and acting sarcastically, Dave loses his temper. Mrs. Frumpington volunteers to teach the boys good manners. She attempts to instruct the boys on how to properly act at the table and how to treat visitors. The Chipmunks use the lessons to take advantage of Dave by buying over $100 worth of junk from a seller, R. B. Huston, and by making Dave buy them enough groceries to stay in their tree platform for a few days.