Louis has a bunch of these. When he's reminded there's a gun pointed at his heart: "That is my least vulnerable spot."
This exchange:
Ugarte: You despise me, don't you? Rick: If I gave you any thought I probably would.
And this:
Rick: How'd you get in here? You're underage. Young Woman: I came with Captain Rénault. Rick: (rolls eyes) I should've known... Young Woman: (primly) My husband is with me also. Rick: Oh, he is? Well, Louis must be getting broad-minded.
The "Blind Idiot" Translation of a couple of German refugees who have decided to only speak English, in preparation for moving to America.
Husband: "Liebchen— er, sweetnessheart... what watch?"
Wife: (checks time) "Ten watch."
Husband: "Such much?"
And Karl's reaction: "...You will get along beautifully in America."
