How I Met Your Mother, Season 1

[Ted and Barney are in a library trying to recruit Barney's friend Penelope for a rain dance]

Penelope:
Why the hell should I help you?

Barney:
Come on, I know it didn't work out between us, but we did have a relationship.

Penelope:
We had sex in your car twice and then you dumped me. How is that a relationship?

Barney:
Twice!

Penelope:
[loudly] Barney, there is no way I'm- [student shushes her]

Barney:
Seriously, come on.

Ted:
Penelope, I really need to make it rain this weekend.

Penelope:
Why?

Ted:
There's this girl-

Penelope:
Oh, there's this girl! You know the traditional rain dance is a sacred prayer to nature. I don't think the great spirit looks too kindly on white dudes who co-opt it to get laid.

Ted:
But this is the girl I love! If it doesn't rain this weekend, she's gonna end up with the wrong guy!

Penelope:
This wrong guy. Is he a huge jackass?

Ted:
Absolutely.

Penelope:
Kinda like Barney?

Ted:
Kinda.

Barney:
Hey!

Penelope:
You hit on my mom!

Barney:
We weren't exclusive!

Penelope:
[To Ted] I'm in.