Well, you know,
it's Comic Con.
The Big Bang Theory Season 5, Episode 7
at Comic Con.
The Big Bang Theory Season 5, Episode 7
(snaps fingers)
Who Con-- you're out.
The Big Bang Theory Season 5, Episode 14
A very long CON indeed.
The Big Bang Theory Season 12, Episode 7
C-O-N...
The Big Bang Theory Season 1, Episode 6