Sheldon: Well, regardless, I can change.
Howard: Sure.
Raj: Yeah, of course you can.
Sheldon: You know, everybody thinks I'm so predictable. Well, tomorrow I'm gonna show up at work and do something no one will expect.
Howard: Wear a baseball cap backwards to prove your point?
Sheldon: ... Yes, but which hat?
Raj: Gryffindor.
Sheldon: Well, now that you guessed it, I'm not gonna do it.
Raj: Yeah, you will.
Sheldon: Yeah.