Steve thinks, but seldom hits, and Sam hits, but seldom thinks. Most days, Sam hits Steve while Steve thinks carefully about the way Sam hits, but Sam never considers this; he thinks Steve is thinking only about the pain he's in. Then, one day, while Sam is hitting and Steve is thinking, Steve makes sure he's standing near the old radiator and when Sam hits, Steve steps aside in just such a way that Sam trips and hits the radiator and it bursts into flames. Now Sam is burning, Steve can't stop laughing, and Sam can't help thinking that no one will ever think that his death wasn't an accident.