
Unless he makes one out of wood
like Geppetto...
The Big Bang Theory Season 2, Episode 13

Still can't talk to me
UNLESS you're drunk, huh?
The Big Bang Theory Season 1, Episode 12

You know I can't talk to women UNLESS
I'm lit up like the Hindu festival of Diwali.
The Big Bang Theory Season 2, Episode 20

Unless you don't like them,
in which case, they're dead to me.
The Big Bang Theory Season 6, Episode 24