A: The house burned down. B: What happened? A: The man fell asleep. B: Was he smoking? A: Yes, he was smoking a cigarette. B: Did he die? A: Yes, he did. His cat died, too. B: That's too bad. What about his smoke alarm? A: The battery was dead. B: A good battery would have saved his life. A: He had cigarettes, but no battery. B: It happens all the time.