Where does the man choose to live?

W: Hi, Jim. Which floor do you live on?
M: The top floor.
W: Why did you choose the top floor?
M: Well, what choice did I have? It was either the top or the ground floor.
W: I’m sorry to hear that. But then, why did you choose the top?
M: Quiet, I suppose. You’ve got nobody jumping about on top.
W: Oh, I see.