Dr. Severson: Well, let's talk about birth control. What have you used in the past?
Sally: Nothing.
Dick: It never really occurred to us to use anything.
Dr. Severson: Oh. Well, uh, how long have the two of you been married?
Sally: Married? Oh, he's my brother. [off Dr. Severson's look] Oh, no, no, no. I have a boyfriend. I'm not even attracted to him.
Dick: Thanks for the gratuitous slam, Sally.