The duplicate asks Susie if he can carry her books. She asks if he's going to throw them into a puddle. The duplicate says he wouldn't do that. Susie says he'd probably do something worse. She says he's not going to touch her books. The duplicate informs her that strictly speaking, he's not Calvin. He's the physical manifestation of Calvin's good side. Susie says if that was true, he'd be a lot smaller. The duplicate says he's heard that joke a lot.