Careful, Leonard. Liquid nitrogen,
320 degrees below ZERO.
The Big Bang Theory Season 1, Episode 5
Zero.
The Big Bang Theory Season 7, Episode 4
you're almost to ZERO.No, see,
The Big Bang Theory Season 12, Episode 23
Zero women--
that's my sweet spot.
The Big Bang Theory Season 7, Episode 19
...that spot at the moment I first sat on it
would be ZERO, ZERO, ZERO, ZERO.
The Big Bang Theory Season 2, Episode 16