I even said "off the CHAIN mail!"
And she still wants to go.
The Big Bang Theory Season 10, Episode 17
Can we please just go in?
My CHAIN mail's stuck in my underwear.
The Big Bang Theory Season 2, Episode 2
...and the inability of some people
to follow the CHAIN of command.
The Big Bang Theory Season 1, Episode 6
You hate the sound of all
those keys on his key CHAIN.
The Big Bang Theory Season 7, Episode 24
This thing kept getting caught
in the CHAIN of my bike.
The Big Bang Theory Season 9, Episode 21