Sheldon: I would have been here sooner but the bus kept stopping for other people to get on it.

Leonard: You call that a glow stick? *Pulls out a Lightsaber* That is a glow stick!

Penny: Sheldon, that's not what girlfriends are for. Although you don't use them for what they're for, so what do I know?

Raj: They don't call me Brown Dynamite for nothin'.

Astronaut Mike Massimino: No problem, Froot Loops.

Sheldon: Wine and a girl in the dark. He's going to be bored out of his mind.

Sheldon: To amend the words of Toy Story, you have not got a friend in me.

Howard: You can't do "Buzz." Buzz is taken.
Raj: Buzz Lightyear is not real.
Howard: No, that's not what I'm talking about.
Raj: Well, are you talking about when he thought he was real?
Howard: No.

Penny: Oh, good, your power's out, too.
Leonard: Why is that good?
Penny: Because last month, I sent the electric company a Starbucks gift card, an apology note, and a few snapshots of me in a bra.

Leonard: Oh, great! I get to spend another night in front of our apartment dressed like one of the Village People.
Sheldon: You make that joke every three months and I still don't get it.

Sheldon: Rise and shine sleepy head, half the town probably is dead.

Sheldon: It took me a gallon of urine to get that water!

Sheldon: You're my girlfriend and you're not going to cater to my every need? Where'd the magic go?

Howard: I got pretty exciting NASA news today. Next week I fly to Houston for orientation and zero-gravity elimination drills.
Penny: What does that mean?
Bernadette: He's gonna to learn to poop in space.
Howard: Open the pod bay doors, HAL.
Raj: Maybe your nickname should be "Brown Dynamite."

Penny: Hey, guys, the building manager said the reason the power went out is someone went down into the basement and just pulled the main breaker switch.
Leonard: Really. Who do you think did that, Sheldon?
Sheldon: Oh, I don't know. But whoever that mystery man was, you should be eternally grateful, for without him, there would be no Leonard's Day.
Penny: Leonard's Day?
Sheldon: Oh, no pressure. Just get him a crummy card, you're good.

Sheldon: Counter-proposal. We reinstate the full roommate agreement with the following addendum, in the spirit of Mother's Day or Father's Day, once a year, we set aside day to celebrate all your contributions to my life, both actual and imagined by you. We could call it Leonard's Day.
Leonard: I kind of like the sound of that.
Sheldon: Of course you do. It's about you, like everything else. [lights come back on] Oh, thank goodness. I don't think I had it in me to make another glass of water.
Leonard: So, do I get breakfast in bed on Leonard's Day?
Sheldon: No.
Leonard: Can I sit in your spot?
Sheldon: No.
Leonard: Can I control the thermostat?
Sheldon: No.
Leonard: Do I get a card?
Sheldon: Of course you get a card. It's Leonard's Day.

Leonard: Listen, Sheldon, this is stupid. I don't see why we can't be friends. And I'm willing to drive you around and help you out with stuff. I just don't want to do it because of some silly roommate agreement.
Sheldon: What are you proposing?
Leonard: That we go back to the way things were. But when I do something for you, you show a little appreciation.
Sheldon: And how would I do that?
Leonard: You say thank you.
Sheldon: Every time?
Leonard: It's not crazy.

Sheldon: Excuse me, Leonard.
Leonard: Since when don’t you knock? It's like the only good thing about you.
Sheldon: Social niceties have been suspended, Leonard. We're in a state of a emergency. The world has descended into darkened turmoil. Lawlessness and savagery are the order of the day.

Sheldon: Power failure. Implementing power-failure protocol.
Leonard: What happened to all your glow-in-the-dark-emergency-exit stuff you had painted on the floor?
Sheldon: Oh, that was wildly carcinogenic. Anyway, it's too bad you’re no longer entitled to the full benefits of my friendship, because I happen to be extremely prepared for such an emergency. Please try not to see anything by this light. It's not for you.
Leonard: It's just a blackout, I'm sure the power will be back on soon.
Sheldon: And I'm sure some fool in the Donner party said the snow would stop any day now. I like to think they ate him first.

Sheldon: Are you suggesting that you've come to your senses and wish to re-establish the mutual benefits that stem from full participation in the roommate agreement?
Leonard: Absolutely. If you admit that you're a 30-year-old man who's incapable of functioning on his own.
Raj: Ooh, Sock Mouth's got him on the ropes.
Sheldon: I will admit nothing of the sort. And now if you'll excuse me, I have to call my dentist and see if I can also get my hair shampooed and my nails clipped.

Leonard: Hey, did you ever make it to the dentist?
Sheldon: Not necessary. No. I found a service that'll send a van to your house for a teeth cleaning. Mostly they cater to dogs, but the fellow on the phone seemed to have an open mind.

Leonard: I have to get a lock for my door.

Penny: Anyway, you want to make out?
Leonard: I thought because our relationship was in a beta test, you wanted to take things slow?
Penny: Okay. Do you want to make out slow?
Leonard: I can go so slow. It'll be like there's a snail in your mouth.

Mrs Wolowitz: Howard, your Froot Loops are getting soggy!

Leonard: Sheldon, Canada is not going to invade California.
Sheldon: Yeah, really? You think those hippies in Washington and Oregon can stop them?

Sheldon: Uh oh, hypothetical aftershock. (Sheldon grabs Leonard and pushes him over) And that's why we wear hard-hats.

Leonard: Whatever, Sheldon. I'm exhausted. I'm not taking you to the dentist.
Sheldon: Wrong, sir. Wrong. Under section 37B of the roommate agreement, miscellaneous duties, you are obligated to take me to the dentist. See? It's right here after providing a confirmation sniff on questionable dairy products.
Leonard: You know what, I am sick of the roommate agreement. It's ridiculous. I'm your roommate, not your chauffeur. You know, I had better things to do yesterday than drive you all the way to the good model train store in Garden Grove because the one in Pasadena has gotten too big for its britches.
Sheldon: Well, it has. Ask anybody.

Bernadette: Howard doesn't make me do his shopping, or take him to the dentist, or pick up his dry cleaning, right?
Howard: Absolutely. But when Ma's hips give out, you're up, kid.

Sheldon: Well, if Amy's too busy, that gives the rest of you an opportunity to make my life easier, thus assuring yourselves a footnote in my memoirs, tentatively entitled "You're Welcome, Mankind". All right, then, just shout when you hear the task you want to undertake. Uh, dentist. Okay, we can circle back to that one. Um, well, who wants to take me Wednesday morning to get new heels put on my dress shoes? Anyone? Oh. That one had hoot written all over it. Um, all right, uh, dermatologist? Allergist? Podiatrist? Supercuts? Okay, okay, here's a fun one. Um, I need a new picture frame and I have a hankering for Swedish meatballs. Who wants to spend the day with me at IKEA?
Raj: Their meatballs are pretty good.
Sheldon: What's that?
Raj: Nothing, nothing.

Sheldon: Hello, Stuart.
Stuart: Oh, hey, Sheldon. Can I help you find something today?
Sheldon: No, no. I was just sitting at home thinking about how it might be nice to catch up with my ninth favorite person.
Stuart: Ninth?
Sheldon: You moved up one. My pen pal in Somalia was kidnapped by pirates.

Sheldon: On a cheerier note, I have a teeth-cleaning appointment this afternoon. What do you say you take me over there, buddy boy?
Stuart: I'm sorry, you want me to take you to the dentist?
Sheldon: Yes. And now, I can't make any promises, but that's the sort of thing that gets a fella on the short list for the number eight friend slot.
Stuart: Sheldon, I'm working. I can't take you to the dentist. Also, and I can't stress this enough, I don't want to take you to the dentist.
Sheldon: Can't help a friend out in a time of need, huh? I see where your therapist was coming from.

Leonard: You know what, I'm so tired I can't even think straight. I'm going home. Will one of you guys give this nutbag a ride back later?
Sheldon: You can't go home. You have to take me to the dentist at four o'clock.
Leonard: Oh, can't you take the bus to the dentist?
Sheldon: Of course I can. It's coming back under the residual effects of the anesthesia, that's the problem. Two years ago after a deep gum cleaning, I thought I got on a bus but somehow wound up on a booze cruise to Mexico.
Raj: They put you under for a cleaning?
Sheldon: Yeah, they have to, I'm a biter.

Howard: Emergency drill night last night, huh?
Leonard: Uh-huh.
Raj: How'd you do?
Sheldon: I'll tell you exactly how he did. Readiness: unsatisfactory. Follows direction: barely. Attitude: a little too much. Overall: not only will he probably die in a fiery inferno, his incessant whining would most certainly spoil everyone else's day.

Raj: Why do you put six sugars in your coffee?
Leonard: Because the cafeteria doesn't offer little packets of methamphetamine.

Leonard: Fine, what is it?
Sheldon: I'm making s'mores. I wanted to alert you in case you smelled caramelizing marshmallows and thought a nearby candy factory was on fire.
Leonard: S'mores, huh? Good for you.
Sheldon: Yes, or good for us if you sign here and reinstate the full roommate agreement.
Leonard: No, thanks. I'm good.
Sheldon: Really? Huh! Okay. In that case, I will have a s'more by myself. And then I'm gonna have s'more. By myself.