Doing fine.

Customer: So how you doing tonight?
Me: Oh I guess I'm fine.
Customer: You know what fine stands for don't you? You might not want to be fine once you find out.
Me: What's that?
Customer: You offended easily?
Me: I'm a cab driver, lady, no disrespect intended.
Customer: Well fine stands for Fucked up, Insecure, Neurotic, and Emotional.
Me: (Laughing) I guess I'm fine then.