Ted: Quinn is totally playing you.
Barney: What? That's ridiculous. If she were playing me, why would she agree to go on a date with me?
[flashback to the strip club, where Quinn is wearing Barney's rolex:]
Quinn: You're different than the rest of these schlubs. This one time only, I'm going to break my rule. Let's go out tomorrow night.
Barney: Sweet!
Quinn: Oh, shoot! I have to work tomorrow.
Barney: Ugh!
Quinn: Hey! Brainstorm! What if we just have our date here?
Barney: It's a date.
[present:]
Ted: It's not a date, if you go into a strip club and paying for lap dances.
Barney: If it's not a date, why'd she say, every fifth dance was free?
Ted: Because that's the Lusty Leopard's policy on Friday nights, and I'm so mad at you that I know that!