
Try telling him
it's a non-optional social CONVENTION.
The Big Bang Theory Season 1, Episode 16

Social CONVENTION is stupid.
The Big Bang Theory Season 5, Episode 16

- But it's the social CONVENTION.
- It is, isn't it?
The Big Bang Theory Season 3, Episode 11

- Really?
- Yeah. I was at a science-fiction CONVENTION...
The Big Bang Theory Season 8, Episode 20

just because social CONVENTION
dictates that you...
The Big Bang Theory Season 12, Episode 23