And the very fact that you needed
a written GUARANTEE of respect
The Big Bang Theory Season 9, Episode 18
Well, if you want to GUARANTEE his appeal
to Stephanie...
The Big Bang Theory Season 2, Episode 9
Well, there is a genetic component,
but that doesn't GUARANTEE anything.
The Big Bang Theory Season 10, Episode 8
There's no GUARANTEE our sperm's
going to generate high-IQ offspring.
The Big Bang Theory Season 1, Episode 1
You know, there's no GUARANTEE
even if you have kids
The Big Bang Theory Season 5, Episode 12