The Gates Excitation

The Big Bang Theory 11×18

Bernadette: If we don't do anything, how long do you think they'll talk about Batman?
Penny: Well, I've know them for 11 years, so... 11 years.

Sheldon: You know what they say, fool me "N" times, where "N" equals the amount of times you've already fooled me, shame on you. Fool me "N" plus one times... shame on me.

Penny: Wait, what? What's he talking about?
Leonard: Uh, he, uh-- obviously, he's kidding. That's a, that's a good one, Bill. I got to go.

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On the IMDb

+ Vanity Card # 583! RIP Stephen Hawking (