Sheldon: Can you believe my mother thinks we're both strange?
Leonard: (loudly) Absolutely not!
Penny: (whispering) That's too loud.
Leonard: (quietly) Absolutely not.

Leonard: All right, I'll tell you. Uh, [stammers] Kevin Smith was there, and-and, uh, this really tall guy named Kareem.
Penny: Wait-wait, K-Kareem Abdul-Jabbar?
Leonard: I don't know, it was, uh, Kareem something Jabbar. How do you know him
Penny: How do you not know him?
Leonard: Well, I know him now 'cause he was there.

Sheldon: So, your convention is in San Diego, right?
Penny: Yes.
Sheldon: Great. I need you to settle a bet for Amy and me.
Amy: I say, when it's not Comic-Con, no one will be dressed as superheroes.
Sheldon: Mm-hmm. And I say fewer people will be dressed as superheroes but still some.
Amy: A crazy person in a cape doesn't count.
Leonard: Mm, why not? It counts at Comic-Con.

Howard: Engage them for a minute and take note of their reactions.
Leonard: There's something familiar about all this.
Howard: Okay, go.
Sheldon: Hello, baby. Are you having a pleasant day?
Leonard: Oh, my G-- This is my entire childhood.
Sheldon: Leonard, Leonard, you're tainting my data.
Leonard: Uh, it's like word for word.

Sheldon: Wonderful, Longclaw is mine. And how about you keep our ... avocado plant?
Leonard: Sounds right. A limited edition collectible worth hundreds of dollars and a thing that grew out of a thing we fished from the trash.

Leonard: Hey, guys, what are you? Oh, that's here, cool.
Penny: Amy wants me to have it.
Amy: Well, it would be selfish of me to keep it.
Penny: But it's a picture of you.
Amy: And you.
Penny: But you commissioned it.
Amy: To give to you.
Penny: But you like it so much.
Amy: So do you.
Penny: I seem to be losing.
Leonard: Yes, you do.

Sheldon: (off-screen) Leonard! I hurt myself again.
Leonard: Excuse me, I have to go take some pictures.

Sheldon: Top of the afternoon, gentlemen.
Howard: You're in a good mood.
Sheldon: Well, it's a new day. I have a new outlook. You know, I realized I don't need to worry about other people. I just need to think more about myself.
Leonard: Oh, how will we ever get used to the new you?

Leonard: Oh, my God. At sleepaway camp my cabin was called "Control Group."

Penny: Leonard, it's sweet you're excited about this, but it'll be a miracle if one person asks for my autograph.
Leonard: Are you kidding? I once paid $20 for Theo Sassler's signature.
Penny: Who's that?
Leonard: Oh, I don't even know. I just liked his name. Theo Sassler!

Amy: Maybe I should just give in to his stupid bathroom schedule.
Leonard: No, don't do that.
Amy: But you did.
Leonard: Exactly! Learn from my mistakes! No matter where I am at 7:18 A.M., there better be a toilet nearby.

Leonard: Look, how can you stop now? That's like walking out of Pinocchio right before he becomes a real boy.

Sheldon: Oh, and also, I am willing to forgo the bathroom schedule.
Penny: Oh.
Leonard: Really? Why does she get that?! We never got that!
Penny: Do you want him back?
Leonard: I'm very happy for you.

Sheldon: Well done. You know, you're proving to be an invaluable part of my entourage.
Leonard: Cool.

Leonard: I'm done enabling him. Like, this is his spot and-and the thermostat has to be set to his comfort level, even though he doesn't even live here anymore and I'm always chilly.
Raj: Is that why you wear a hoodie all the time?
Leonard: Why would-- Yes! To accommodate Sheldon! And what-what about this-this thing? Why is it here? I'll tell you why. Because it was here when I moved in, and, for no earthly reason, he forbade me to touch it.
Amy: Well, if you don't like it, get rid of it. Put it in the closet.
Leonard: You know what, I will. [Leonard tries to move the helix structure. Lots of little beads fall off and come crashing to the floor]
Raj: I bet that's the reason.