Sheldon: (Playing Boggle) Oh, worf. Nice. Too bad that's a proper noun.

Penny: What was my first strike?
Sheldon: March 18th, you violated my rule about forwarding email humor.
Penny: I did?
Sheldon: The photo of the cat who wants to "Has Cheeseburger?"
Penny: Oh, come on, everybody loves Lolcats. They're cute and they can't spell because they're cats.
Sheldon: I trusted you with my email address and you betrayed that trust by sending me internet banality. Strike one. Touching my food. Strike two.

Penny: I like hanging out with you guys, but I'm not gonna apologize for something I didn't do.
Leonard: Well, actually, technically, you did do it.
Penny: That's strike one, Leonard.

Sheldon: (On computer screen) Hello, puny insects, as a consequence of your efforts to circumvent my will, everyone is awarded one additional strike.
Leonard: Thanks a lot, Howard.
Howard: What are you complaining about? I'm the one who has to take the class again.

Penny: Look, I said I wanted to hurt him, but this?
Leonard: It will shorten the war by five years and save millions of lives.

Penny: Here you go, [to Leonard] quesadilla, [to Howard] salad, [to Raj] here's your pizza. And thanks to Sheldon's heated discussion with my manager, one barbecue bacon cheeseburger, barbecue sauce, bacon, and cheese on the side.
Sheldon: Thank you!
Penny: Go ahead. Eat it. I dare you!

Penny: I was in junior rodeo. I can hog-tie and castrate him in 60 seconds.

Penny: Where are my clothes?
Sheldon: Your clothes?
Penny: Yes. I left them in the washers and when I went down to get them, they were gone.
Sheldon: Really? Despite the sign that says: "Do not leave laundry unattended?"

Sheldon: You know, I do recall seeing some female undergarments. Where was that? Oh, yes. Earlier this evening, I happened to gaze out the window and a brassiere caught my eye. Do those look familiar?

Sheldon: Alright, Klingons, pencils down.

Penny: Hey, guys. What'd I miss, what'd I miss?
Howard: Giselle's hanging by a thread.
Penny: Oh, good, I hate her.
Howard: Then you're not invited to our wedding.

Penny: This has gotten way out of hand, okay. I've done some stupid things, you've done some stupid things. How about we just call it even, and move on with our lives?
Sheldon: I've done no stupid things.
Penny: Look, you've gotta meet me halfway here.
Sheldon: I am meeting you halfway. I'm willing to concede that you've done some stupid things.

Sheldon: [answers phone] Hi, Mom, how are you? But, Mom, she keeps sitting in my spot. And she touched my food. Okay, yes, I took her clothes, but she started it. No, that's not fair! Why should I have to apologize? I really don't think this is the kind of thing Jesus concerns himself with. No, you're right. I don't really know what Jesus thinks about. All right! Goodbye. [hangs up] [to Leonard] Did you tell on me?
Leonard: Are you kidding me? I already have 2 strikes

Penny: Get them down!
Sheldon: Apologize.
Penny: Never.
Sheldon: Then you just get a very long stick and play panty pinata!

Sheldon: Then I suggest you get them down with a long stick and play panty piata.