Quote from Barney in A Change of Heart
[flashback to Nora and Barney out on the street:] Nora: Here we are. I had a really great time tonight. Barney: Yeah, me, too. Nora: Do you want to come upstairs? Barney: I'd love to. There's just one little thing, and it probably doesn't matter, but... I don't want to get married. I've been saying that all night just to get in your pants. [Nora slaps Barney] Barney: Whoa! [present, in the doctor's office:] [Lily slaps Barney] Barney: Oh! Ahh! Can you believe... [Dr. Kirby slaps Barney]