Bashir: Assuming you're not a spy.

Garak: Assuming.

Bashir: Then maybe you're an outcast.

Garak: Or maybe I'm an outcast spy.

Bashir: How could you be both?

Garak: I never said I was either.

Don Draper: When asked about your past, give vague, open-ended answers.
[woman enters]
Woman: So, Don... tell me about your family. Any brothers and sisters?
Don Draper: There was a man... with bright... shiny shoes. I saw him dancing... until the accident.
Woman: Oh, how mysterious!

Roger Sterling: So Don, why don't you tell us a little about yourself?
Don Draper: I would, but It'd ruin the first half of my novel.

Renault: I've often speculated why you don't return to America. Did you abscond with the church funds? Did you run off with a Senator's wife? I like to think that you killed a man. It's the romantic in me.

Rick: It's a combination of all three.

Renault: And what in Heaven's name brought you to Casablanca?

Rick: My health. I came to Casablanca for the waters.

Renault: The waters? What waters? We're in the desert.

Rick: I was misinformed.

You are being deliberately obscure as a substitute for having a personality.