
that can get a person uninvited
to this year's Who Con.
The Big Bang Theory Season 5, Episode 14

But you have the CON.
The Big Bang Theory Season 2, Episode 5

Well, you know,
it's Comic Con.
The Big Bang Theory Season 5, Episode 7

C-O-N...
The Big Bang Theory Season 1, Episode 6

- And finally, area rugs, pro or CON?
- Pro?
The Big Bang Theory Season 2, Episode 19