To spray or not to spray

ARTHUR: Old woman!
DENNIS: Man!
ARTHUR: Old Man, sorry. What knight live in that castle over there?
DENNIS: I'm thirty seven.
ARTHUR: What?
DENNIS: I'm thirty seven -- I'm not old!
ARTHUR: Well, I can't just call you `Man'.
DENNIS: Well, you could say `Dennis'.
ARTHUR: Well, I didn't know you were called `Dennis.'
DENNIS: Well, you didn't bother to find out, did you?