Didn't Tesla die penniless,
forgotten and INSANE?
The Big Bang Theory Season 11, Episode 8
And I'm not INSANE.
My mother had me tested.
The Big Bang Theory Season 2, Episode 4
Are you INSANE?
You're not gonna party with them.
The Big Bang Theory Season 2, Episode 7
He wasn't INSANE.
The Big Bang Theory Season 11, Episode 8
I merely offer you a facial expression
that suggests you've gone INSANE.
The Big Bang Theory Season 3, Episode 12