Ted: How we doing on time? Taxi!
Stella: We got a little time.
Ted: Okay. Do you want to walk it?
Stella: Why not?
Ranjit: Hello! [Ted taps the roof of the taxi] Good-bye!

Barney: [laughs hysterically]
Ted: Why? Just why?
Barney: You don't remember?
[flashback to one year earlier:]
Barney: I'll bet anyone ten bucks I can get Ted to grow a mustache.
Ted: Uh... okay.
[present:]
Ted: You sabotaged my next to last chance with Stella for ten dollars?
Barney: [laughing] I know. I would've done it for free. [seriously] But, no. You owe me ten bucks.

Stella: Ah, the butterfly tramp stamp. My bread and butter. So I'm guessing that the real story involves a bad breakup and some booze. Unless it's a gang tattoo, in which case, I think it's time to find a new gang.
Ted: No, I just thought it would be cool to get a caterpillar tattoo, and then a few weeks went by, and all of a sudden...