
The leaving of a message
is one half of a social CONTRACT...
The Big Bang Theory Season 2, Episode 22

You wanna sign a CONTRACT
that Sheldon whipped up, go ahead.
The Big Bang Theory Season 9, Episode 18

Sheldon, did you draft the CONTRACT?
The Big Bang Theory Season 9, Episode 18

Yeah, well, it's in our CONTRACT
to serve on a university committee.
The Big Bang Theory Season 6, Episode 18

Our CONTRACT is our bond.
Game of Thrones Season 3, Episode 8