Big Bang Theory Quote
Leonard: (addressing a class of graduate students) So, if any of you are considering in going into experimental physics, my door is always open. Once again, I'm sorry that the demonstration didn't quite work out. But, now we know what happens when you accidentally spill Peach Snapple into a helium-neon laser. The short answer is... don't. And now, to tell you about the theoretical physics department is Dr. Sheldon Cooper.
(students applaud)
Leonard: Dr. Cooper...
Sheldon: (In closet) Forget it.
Leonard: Excuse me.
(opening door to closet)
Leonard: Sheldon, we both agreed to do this.
Sheldon: It's a waste of time. I might as well explain the laws of thermodynamics to a bunch of labradoodles.
Leonard: If you don't do this, I won't take you to the comic book store.
Sheldon: (Coming out) Hello. Nice work with the laser, by the way.
Quote from S02E06 - The Cooper Nowitzki Theorem