The Big Bang Theory, Season 7

Raj:
OK, go ahead and divide yourselves into teams of two.

Bernadette:
Should we just do couples?

Leonard:
Couples sounds great or we could mix things up maybe pick teams out of a hat. Whatever.

Penny:
Whoa. Whoa. Whoa. Why don't you just admit you don't want to be on a team with me?

Leonard:
I just said couples sound great.

Penny:
Hm-mm. Yea. You don't think I'm smart enough. You just think I'm going to be a liability. Even though I totally just used liability correctly in a sentence.

[Amy nods at her.]

Leonard:
No, let's do couples. I want to.

Penny:
Oh no, no. Let's mix things up. I choose Sheldon and we're going to kick your ass.

Sheldon:
Really? The only time I never get picked first for the team and I'm stuck with the liability.

Amy:
Stop that. Penny is not a liability.

Penny:
Thank you. Do you want me to be on my team?

Amy:
Maybe we pick names out of a hat?