2. Season 1, episode 1, Part 3
Scene: The stairs of the apartment building.
Sheldon: Are you still mad about the sperm bank?
Leonard: No.
Sheldon: You want to hear an interesting thing about stairs?
Leonard: Not really.
Sheldon: If the height of a single step is off by as little as two millimetres, most people will trip.
Leonard: I don't care. Two millimetres? That doesn't seem right.
Sheldon: No, it's true, I did a series of experiments when I was twelve, my father broke his clavicle.
Leonard: Is that why they sent you to boarding school?
Sheldon: No, that was the result of my work with lasers.
Leonard: New neighbour?
Sheldon: Evidently.
Leonard: Significant improvement over the old neighbour.
Sheldon: Two hundred pound transvestite with a skin condition, yes she is.
Penny: Oh, hi!
Leonard: Hi.
Sheldon: Hi.
Leonard: Hi.
Sheldon: Hi.
Penny: Hi?
Leonard: We don't mean to interrupt, we live across the hall.
Penny: Oh, that's nice.
Leonard: Oh… uh… no… we don't live together… um… we live together but in separate, heterosexual bedrooms.
Penny: Oh, okay, well, guess I'm your new neighbour, Penny.
Leonard: Leonard, Sheldon.
Penny: Hi.
Leonard: Hi.
Sheldon: Hi.
Penny: Hi.
Leonard: Hi.
Well, uh, oh, welcome to the building.
Penny: Thankyou, maybe we can have coffee sometime.
Leonard: Oh, great.
Penny: Great.
Sheldon: Great.
Leonard: Great. Well, bye.
Penny: Bye.
Sheldon: Bye.
Leonard: Bye.
Leonard: Should we have invited her for lunch?
Sheldon: No. We're going to start Season Two of Battlestar Galactica.
Leonard: We already watched the Season Two DVDs.
Sheldon: Not with commentary.
Leonard: I think we should be good neighbours, invite her over, make her feel welcome.
Sheldon: We never invited Louis-slash-Louise over.
Leonard: Well, then that was wrong of us. We need to widen our circle.
Sheldon: I have a very wide circle. I have 212 friends on myspace.
Leonard: Yes, and you've never met one of them.
Sheldon: That's the beauty of it.
Leonard: I'm going to invite her over. We'll have a nice meal and chat.
Sheldon: Chat? We don't chat. At least not offline.
Leonard: Well it's not difficult, you just listen to what she says and then you say something appropriate in response.
Sheldon: To what end?
