[Dr. Cawley has asked the marshals about their preferred drinks]

Soda and ice, please, thanks.

Oh. You don't indulge in alcohol? I'm surprised. Isn't it common for men in your profession to imbibe?

Common enough. And... in yours?

Er... I'm sorry?

Your profession, Doctor, psychiatry.

Yes?

I always heard it was overrun with boozers and drunks.

Not that I noticed.

What's that, ice tea in your glass there?

[laughs, despite himself]

Excellent, Marshal. You have outstanding defense mechanisms. You must be quite adept at interrogations.