Raj: No, no, no, no! That rate is much too low for what we'd expect from this collision. Do you understand that we're talking about dark matter colliding in outer space?
Sheldon: Of course I understand. And who are you to tell me about outer space?
Raj: I'm the astrophysicist. Astro means space.
Sheldon: Astro means star.
Raj: Okay, well, let me just tell you, if we were having this argument in my native language, I'd be kicking your butt.
Sheldon: English is your native language.