Dear CRAZY, future Sheldon,
you were driven mad by an earworm.
The Big Bang Theory Season 9, Episode 10
No, you're CRAZY about me.
The Big Bang Theory Season 8, Episode 4
Is that CRAZY?
The Big Bang Theory Season 1, Episode 1
And she's a little CRAZY,
The Big Bang Theory Season 7, Episode 14
It was CRAZY.
The Big Bang Theory Season 7, Episode 15