Howard: Still lives with his mom? Yikes, right?
Raj: Yeah, I'm not quite sure how to respond.

Leonard: Wow, Donkey Kong. This was my game when I was a kid.
Sheldon: Because it's a story of a pretty blonde girl tirelessly pursued by a small oddly-shaped man?

Raj: Maybe he's playing bingo with his mommy?
Howard: Sad how some guys just can't cut the apron strings.
Raj: Okay, now you're messing with me.

Penny: Doc, you've got see what you're doing is a little creepy.
Dr. Lorvis: You sound just like Sigourney Weaver when I followed her into a restroom.

Penny: Okay, you can't just go chasing after every girl who's nice to you.
Dr. Lorvis: Well, that's not what Sheldon says, and he seems to know his way around the ladies.

Penny: You locked them in your basement?
Dr. Lorvis: Well, they're not locked in. The door just sticks.
Penny: Okay, so how do they unstick it?
Dr. Lorvis: They'd need the key.

Howard: How does it feel to know your fiance's job is to go out and flirt with doctors looking like that, while you sit here, you know, looking like this?

Bernadette: Speaking of new careers, how are things going with dark matter, Sheldon?
Sheldon: Oh, I have to say it's the most exciting time in the history of the field.
Bernadette: Oh, what's going on?
Sheldon: I started doing it.

Penny: Hang on. You guys are going to work in a mine?
Sheldon: Why not?
Penny: You had a panic attack when we went through the car wash!

Sheldon: Are they making fun of us?
Raj: Yep.
Sheldon: I miss the old days when I couldn't tell.

Raj: Sheldon, you busy?
Sheldon: I'm always busy. This mind is capable of advanced multi-tasking. Currently, I'm attempting to solve the Penrose Conjecture, I'm composing my Nobel acceptance speech for when I've solved the Penrose Conjecture, and I'm wondering how mermaids have babies.

Raj: So I did a little research on what the conditions are like in the mines, and the guys might be right. It sounds pretty rough down there. For starters, it's very humid and about a hundred degrees.
Sheldon: I'm from Texas and you're from India. We're no strangers to the fragrant arm pit. Next.
Raj: It's also a live mine, so there'll be dynamite explosions going off in the distance.
Sheldon: I have a lactose-intolerant roommate with a taste for ice cream. Next.
Raj: You have to be down there for twelve hours at a time.
Sheldon: Have to be somewhere.
Raj: There's no toilet, so we'll have to do our business in a bucket.
Sheldon: So it's settled? We're not doing it.

Leonard: Hear me out. I know things got a little weird last night.
Penny: Well, leaving an envelope of cash on my night-stand after sex would count as weird.

Penny: Or maybe, now that I'm no longer an out-of-work actress who can't pay for her own dinner, that makes you a little insecure.
Leonard: I can't believe you would say that. You know how insecure I am about my insecurities.

Raj: All this time, I never knew there were steam tunnels down here.
Amy: Most universities have them. When I was an undergrad, I spent three days in one pledging a sorority.
Raj: Did you get in?
Amy: No, they forgot I was there. But it really opened up my pores.