Sheldon: Would you like to go with me to a comic book convention?
Georgie: Will there be girls there?
[Sheldon turns around and walks away without saying a word]

Adult Sheldon: I was normally a rule follower, but one of the rules of spring break is to cut loose and break rules.
Sheldon: I'm heading out.
Mary: Where you going?
Sheldon: To see my comic book friends.
George: Hmm. I'm leaving in a few. You want a ride?
Sheldon: No, I'm taking my bike.
Adult Sheldon: All the way to the bus station. [Sheldon smirks]
George: Something funny?
Sheldon: Not funny. Just normal.
Adult Sheldon: Smooth.
Sheldon: Bye.
Adult Sheldon: So smooth.

Nathan: So how do you know Dr. Smith over there?
Sheldon: That's not Dr. Smith, that's Mr. Givens. He was my high school science teacher.
Nathan: Oh. Well, he's dressed as Dr. Smith from Lost in Space.
Sheldon: Oh, I've never seen it.
Nathan: Yeah, well, you're not missing much. It was a lame kids' show.
Mr. Givens: I'm sorry, "lame kids' show"? For your information, Star Trek wouldn't exist without Lost in Space. [all oohing]
Nathan: Yeah, well, at least Star Trek didn't have to steal its robot from Forbidden Planet. [all oohing]
Sheldon: I take it from their reaction that was a good dig?
Nathan: Solid.
Sheldon: Nice job.

Oscar: So, how old are you?
Sheldon: Twelve.
Oscar: Damn.
Darren: And they let you live here by yourself?
Sheldon: That room's just for during the day to study.
Oscar: Didn't I see some lady in there?
Sheldon: That must've been my mom.
Oscar: Dude, his mom is hot.
Darren: What is wrong with you? Don't listen to him. He thinks any female with a pulse is hot.
Oscar: I don't think your mom is hot.
Darren: Congratulations, you're more mature than him.
Sheldon: Don't feel bad. I'm more mature than most people.

Oscar: I'm hungry. You wanna order something?
Darren: Chinese?
Oscar: Little man, you want Chinese?
Sheldon: I don't know. I've never had Chinese food.
Oscar: Really?
Darren: We get it, like, two, three times a week.
Sheldon: Chinese food three times a week? That seems excessive.
Darren: How have you never had an egg roll?

Darren: Any chance you play Dungeons and Dragons?
Sheldon: And how. I once created a campaign set in 1940s London where Alan Turing was a character, and I had the mathematicians be magic users with theorems instead of spells. The intelligence officers were clerics...
Darren: "Yes" works. We're playing tonight and we're down a magic user. You in?
Sheldon: When are you playing?
Darren: We start at 7:00. We'll go till whenever.
Sheldon: My mom didn't let me stay past 6:00 yesterday. She'll never let me stay till "whenever."
Darren: Bummer.
Sheldon: Mm. You could play at my house.
Darren: No.
Sheldon: Bummer. I've never said that before. Did it sound cool?
Darren: No.
Sheldon: Bummer.

Sheldon: I don't know. I don't think I should.
Oscar: It's just root beer.
Sheldon: This late in the evening, my mother wouldn't approve.
Oscar: Okay.
Sheldon: Then again, I didn't think they'd let me stay, and they did, so maybe it's fine.
Oscar: I know, why don't you roll for it?
Sheldon: Ooh, good idea. Seventeen. Guess I'll have it.
Darren: We playing?
Sheldon: Hold on. Do you have a coaster?
Darren: Yeah, it's in the china cabinet.
Sheldon: And where would that be?

Sheldon: You might want to pace yourself. Our next rest stop isn't for another... 62 miles.
Dr. Linkletter: If anyone needs to go before that, I've got a trucker's buddy in back.
Sheldon: What's that?
Dr. Linkletter: A bottle you urinate in.
Sheldon: I'm sorry, are we the Donner Party?

Dr. Linkletter: How about some music?
Sheldon: No one likes music. How about a car game? Ooh, I have a fun one where I say a formula, and then you have to say another formula starting with the last letter or number that I said. So, for example, if I said, [Linkletter groans] "X" equals negative "B" plus or minus...
Dr. Linkletter: Music it is. [classical music plays]

Missy: You have a calculator I can borrow?
Sheldon: Yes, but I'm using it.
Missy: No, you're not.
Sheldon: [Sheldon taps his head] Why do you need a calculator?
Missy: I'm trying to figure out what to spend my money on. What are you gonna do with yours?
Sheldon: I'm glad you asked. I'm dipping my toe in the exciting world of the stock market by purchasing three shares of RadioShack.
Missy: Why?
Sheldon: Well, as a shareholder, I'll be partial owner of my very favorite company. See, when companies go public, they sell shares of stock...
Missy: I'll just buy my own calculator.

Adult Sheldon: I'd only been a shareholder for one day and I was already reveling in the giddy thrill in being part owner of a thriving tech company.
Sheldon: [on the phone] Hello, RadioShack. Sheldon Cooper, shareholder. I just wanted to let you know I'm so excited to be part of the team. While I sound young, rest assured, I'm far more intelligent than my age would imply. So if there's anything I can do to help, budgeting, product design, finding a word more impressive than "shack," I'm your man.

Adult Sheldon: My sister had taken a different path with her money.
Sheldon: What is that?
Missy: It's a cotton candy machine.
Sheldon: Why?
Missy: It's a machine that makes free cotton candy.
Sheldon: It's not free, you paid for it.
Missy: Meemaw paid for it. And it's still better than lame stocks.
Sheldon: You're going to end up with a stomachache while I get to be part of America's favorite electronics retailer.

Adult Sheldon: While my sister was starting her business, I was trying to save mine.
Sheldon: [on the phone] Hello, this is Sheldon Cooper. May I speak to CEO John Roach, please? It's regarding our stock taking a small dip, and I'd like to hear his game plan. Well, I'm busy, too, but I made the time to call. Fine, may I please speak to your COO? CFO? CTO? Hello?

Sheldon: [on the phone] What do you mean, he hasn't read my fax? Is he aware I'm a shareholder? Well, where's the next shareholders' meeting? Fort Worth? I could barely get my mom to drive me to church.

Meemaw: You haven't said a thing about my new car.
Sheldon: Oh. I hate it.