- What's the PROTOCOL for leaving?
- I don't know.
The Big Bang Theory Season 1, Episode 1
Do you honestly expect me to believe
social PROTOCOL dictates...
The Big Bang Theory Season 2, Episode 19
-Yes. I think the PROTOCOL can wait.
-No, tell me about it.
Money Heist Season 3, Episode 7
Well, I'm not sure of the PROTOCOL.
The Big Bang Theory Season 10, Episode 16
a sort of handshake PROTOCOL.
Westworld Season 2, Episode 8