Lois: Hal, it wouldn't be such a big deal if you would just admit it.
Hal: Come on, Lois, what possible reason would I have to kiss Karen?
Lois: You're a man!
Hal: What is that supposed to mean?
Lois: You have been with the same woman for 20 years. It's only natural to be a little... curious.
Hal: About what?
Lois: You mean to tell me after all these years of marriage, you've never so much as thought about another woman?
Hal: What are you talking about?
Lois: If you are just gonna be ridiculous, there's no point in carrying on this conversation. But you are on notice!