Penny: Does the study say what happens to the unpopular kids?
Leonard: You tell me. You woke up in bed with one.

Sheldon: What if the helium dealer rats us out? What if Kripke asks where we got it? What if the university checks my family tree and finds out I don't have an Uncle Harvey?
Leonard: The dealer doesn't care, Kripke has no authority over us, and you being related to a metal container would explain a lot.

Sheldon: Is this one of those times where I've won the battle but lost the war?
Leonard: Afraid so, Skippy.
Sheldon: I told you we shouldn't go shopping at night.

Sheldon: Besides, a bar is where I belong. I'm having female problems.
Leonard: If you're cranky and retaining water, I have a theory.

Penny: I think it's great you guys want to get more exercise, but do you really think sports is the right choice for you?
Leonard: What are you saying? We're not coordinated enough to play sports?
Penny: Okay, Leonard, sweetheart, you twisted your ankle playing Scrabble.
Leonard: I got a triple-word score with a double letter Q. If that's not a time to bust out the Scrabble dance, what's the point of having one?

Leonard: Barry Kripke started a fencing club.
Sheldon: Interesting. Sword fighting does hold a certain elegant appeal. And I would imagine it meets many of our personal criteria for a sport.
Leonard: It's indoors, so no sunscreen.
Sheldon: No throwing, no catching, no running.
Leonard: No gym shorts that can be yanked down.
Sheldon: Or worse, up.
Leonard: Preach.

Leonard: Hey, ready for lunch?
Howard: Oh, one sec.
Sheldon: Is that the prototype drive system for the high-G rover?
Howard: No, Bernadette got me a Fitbit so she can track how much I'm exercising.
Leonard: That'll teach her to care about your health.
Howard: Yeah, I can't wait to see the look on her face when I die young.

Penny: What else can you do? Move back in with him?
Leonard: No, of course not. I just feel bad.
Penny: Well, so do I, but don't you want to live with your wife and set the thermostat to whatever you want? And have your body tell you when it's time to go to the bathroom? You know, not a schedule slipped underneath your door every morning?
Leonard: I did like that he had the weather on it.

Penny: Trust me, this is the right thing.
Leonard: I know. And it's not like we're abandoning him.
Plus, we can FaceTime him whenever we want, you know, once iPhones are invented in his universe.

Penny: So, what are you thinking for dinner?
Leonard: Well, it's Thai food night.
Penny: Well, honey, you don't live with Sheldon any more. You can have anything you want.
Leonard: You're right. But what? Mexican? Italian? German? Indian? Greek? Cuban? Chinese? Pizza? Barbecue? Korean? Korean barbecue?
Penny: How about Thai food?
Leonard: Oh, thank God.

Sheldon: All right, now all that's left is for us to sign and date the document, and we will officially no longer be roommates.
Penny: What's the matter?
Leonard: It's harder than I thought.
Sheldon: Let me help you. L-E-O-N-
Leonard: That helped!

Raj: If this was Star Trek, we could use a phaser to blast it off.
Howard: No, it's too broad of a beam. You'd need something more precise, like Superman's heat vision.
Sheldon: Ooh, the Green Lantern's ring could make a big green hand that unscrews it.
Raj: If you need a green hand, why not just use the Hulk?
Sheldon: Oh, please, the Hulk would never get across the border with that temper.
Leonard: Guys, excuse me, not that calling one of the Avengers isn't a perfectly reasonable choice, but we're scientists. Don't you think we can figure this out using actual science?
Sheldon: Yes, we could use science. But it's your bachelor party. Lighten up.

Sheldon: What if that burning food attracts animals?
Howard: We have plenty of food for the animals.
Sheldon: We do?
Howard: Yep. A six-foot wiener in a Flash T-shirt.
Sheldon: That's not very nice.
Leonard: It's a bachelor party. Lighten up.

Raj: When did you learn how to change a tire?
Howard: Every self-respecting gentleman should know how in case he comes across a damsel in distress by the side of the road.
Sheldon: If I see one scorpion, I am getting on someone's shoulders and never coming down.
Leonard: And there's your damsel.

Leonard: Sheldon, can you believe that we're driving in a van that was owned by one of the greatest scientific minds of the 20th century?
It's like the Batmobile. If Batman was real and a physicist and his car wasn't cool.