Bernadette: Hands off. I'm mad at you.
Howard: Look, I know it's a lot of money, but the guy at the store said in five to seven years it'll pay for itself.
Bernadette: What will pay for itself?
Howard: Doesn't matter. What are you mad about?

Howard: You know, I'm really glad you decided to learn Mandarin.
Sheldon: Why?
Howard: Once you're fluent, you'll have a billion more people to annoy instead of me.

Howard: So you can never take it (the sweater) off?
Leonard: No.
Raj: Not even to sleep?
Leonard: No.
Howard: So you're just an idiot?
Leonard: It's called proving a point.
Howard: Is the point you're an idiot?

Bernadette: Maybe we should get one of those machines to help her up the stairs.
Howard: You mean a fork lift?

Amy: I've seen and talked to you more in the two days we've been broken up than in the last two months we were together.
Sheldon: Well, if you want to see less of me, maybe we should go out again.

Sheldon: Hello.
Leonard: Hey, buddy, can we have some privacy?
Sheldon: Of course. Wouldn't want to intrude. (takes red bra out of his pocket and hands it to Penny) This is yours.
Penny: Okay, when I'm done with him, I'm gonna need more information.
Sheldon: Nothing odd. I just wanted to rub Amy's nose in it.

Leonard: I'm not being weird. Am I being weird?
Sheldon: Yes. And that's coming from me.