Dr. Neil deGrasse Tyson: Well, that was fun. Let's see who else needs a deGrasse kickin'.
Bill Nye: Bill Nye the Science Guy.
Dr. Neil deGrasse Tyson: Hey, Bill, Neil Tyson. We've got to talk.
*Bill Nye quickly hangs up the phone*

Penny: You know, you compared us to the strangest couple we know, and we know Amy and Sheldon, Howard and Bernadette, Raj and his twitchy little dog.

Amy: How's this for a compromise? Make all the schedules you want, just don't tell me about them.
Sheldon: Excellent. I'll create an algorithm that'll generate a pseudo-random schedule.
Yeah, and do you know why it won't be a true random schedule?
Amy: Because the generation of true random numbers remains an unsolved problem in computer science.
Sheldon: Come with me.
Amy: Where are we going?
Sheldon: To the hotel room. And when we get there, I'm gonna need you to say that again, except naked.

Raj: Sounds like someone's in there.
Bernadette: My God, what if Sheldon and Amy are getting robbed?
Howard: Or worse, what if they're back early?