As he does so, the uranium rod bounces into the air and falls down the back of his radiation suit. The next shot shows Marge and Maggie checking out at a supermarket. Maggie, who is sitting on the conveyor belt, is inadvertently scanned along with the groceries as Marge reads a magazine. Maggie is rung up at a price of US$847.63 (representing the monthly cost of raising a child at the time) and bagged. Marge frantically looks around for Maggie as the bag is dropped into her shopping cart which startles her and makes her turn around, then breathes a sigh of relief when she pops up from the bag. Lisa is shown next at band practice. The opening theme coordinates with this shot, and is orchestrated as if it were played by the school band. Mr. Largo stops the rest of the band to order Lisa out of the rehearsal for her unorthodox playing of her saxophone, which is light blue in this sequence, but gold in the episode. She continues to improvise on her way out of the room. Shots of the family on their way home to 742 Evergreen Terrace are then shown. As Homer drives through Springfield, he fumbles behind his neck, pulls the uranium rod out of his shirt collar, and throws it out the car window. As it bounces off the curb near Moe's Tavern, Bart skateboards past, noticing a bank of televisions in a store window he passes showing Krusty the Clown; he then passes a bus stop and unwittingly steals its sign. The five unknown characters waiting at the stop then chase after a bus that fails to stop for them. As soon as Bart crosses the road, a car drives past and Maggie is seen inside at the steering wheel. The camera alternates between close-ups of her jerking the wheel back and forth and the car veering wildly, it then zooms out to reveal that her wheel is only a toy. Marge is actually driving the car, and Maggie imitates her horn-honking. Lisa then rides her bicycle down the street, her books and saxophone case strapped into the front basket and the back of her seat, respectively; when she hits a bump, the books are briefly jolted upward but held down by the straps. Lisa is the first to arrive at home as the garage door opens, jumping off her bike