The Big Bang Theory, Season 3

Penny:
Come on, Sheldon, let's go home - we're done fighting.

Sheldon:
I've heard that before. Then the next thing you know I'm hiding in my bedroom blaring a Richard Feynman lecture while my mom is shouting that "Jesus would forgive her if she put ground glass in my dad's meatloaf." And my dad's on the roof skeet shooting her Franklin Mint collectible plates.

Penny:
There's gonna be no more shouting and no skeet shooting.

Sheldon:
Really? Where's your friend Justin going to sleep?

Leonard:
Yeah, where's he gonna sleep?

Penny:
Oh, my God, would you let this go?!

Stuart:
[walking by] I'd let it go.

Leonard:
Why do I have to let it go, why can't you just tell the guy to find another place to sleep?! [Sheldon turns on a toy robot to drown out the arguing] Oh, for God's sakes! [turns off the robot] So, you have childhood issues - we all have childhood issues. At some point you just need to grow up and get past them.

[Sheldon turns on another robot]

Penny:
Leonard, will you just let me handle this, please? [takes robot from Sheldon and turns it off] Sheldon, please, try and understand. Look, Leonard and I are in a relationship, and occasionally, we're gonna fight. But - no matter what happens between us, we'll always love you. Right, Leonard?

Leonard:
Always is a long time. [both look at him] Sure, always.

Penny:
You know, how 'bout we buy you this robot and we all go home?

Sheldon:
I want that one. [points to the toy robot held by Leonard]

Penny:
Okay, we'll buy you that one.

Leonard:
Ah, come on, he's just gonna play with it twice and then it'll end up in his closet with all the other junk.

Penny:
Buy him the robot, Leonard. [Leonard walks off to buy the robot]

Sheldon:
Can I get this comic book, too?

Penny:
[mom-like tone and face] Yes, you can. [Sheldon runs off]