Sheldon: All right, we're going to be designing an experiment to look for the annihilation spectrum resulting from dark matter collisions in space.
Raj: Ooh, dark matter. We better bring a flashlight, ha, ha.
Sheldon stares at Raj.
Raj: I was making a joke.
Sheldon: I'm the boss. I make the jokes.
Raj: Sorry, go ahead and make your joke.
Sheldon: This is not the time for joking.