Sheldon: Who told you you could touch my board?
Leslie: No one.
Sheldon: I don't come in to your house and touch your board.
Leslie: There are no incorrect equations on my board.
Sheldon: Oh! That is so, so...
Leslie: I'm sorry; I've got to run, if you come up with an adjective text me.
Sheldon: Inconsiderate, that is the adjective, inconsiderate!
Sheldon: The name always confused me - Souplantation. You can't grow soup.
Sheldon: Are you still mad about the sperm bank?
Sheldon: Do 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 millimeters most people will trip.
Leonard: I don't care...Two millimeters! That doesn't seem right.
Sheldon: No it's true! I did a series of experiments when I was 12, my father broke his clavicle.