Barney: And that concludes all the space-related lies. Let's move on to the world of sports. Oh, wait, sorry. I just thought of another space one. "I've been bitten by a moon snake. You need to suck all the space poison out of my-"
Nora: Okay, Barney, uh, I have to be at work tomorrow at 8:00, which means I have just about enough time to sit in a shower for 11 hours, hugging myself.
Barney: So this was fun. Can I call you, or...?
Nora: Barney, you're funny, handsome and really quite clever. But you're also a sociopath.
Barney: Well, I count three pros and one con, so...
Nora: How do you still think you have a chance with me?
Barney: Because you sat here all night. You could've left right away, but you didn't. Look, Nora, all those lies, that's the old me. But I swear to you, I am trying to change. You... make me want to change.
Nora: How do I know that's not a lie?
Barney: I'll prove it. I will prove how serious I am. I will not leave this diner until I get a second date with you.
Nora: Good-bye, Barney.
Barney: I'm not kidding. This is a 24-hour diner. I'll stay here forever if I have to, and I will! [to the waitress] Just water for me. Thanks.