In Plain Sight, Season 2

Marshall:
It was a bad neighborhood; a bad situation from the get go. The witness should never have been allowed to move there. Mary should never have been put in that position: managing a witness over whom she had no authority!

Stan:
I know; I know. I shouldn't have allowed it.

Marshall:
I should have stayed; I saw what was going on there. It just -- didn't occur to me.

Stan:
Why would it? It's Mary. She's like -- [sighs] I don't know.

Marshall:
I know.

Stan:
Fierce, you know? Like she's always gonna be the toughest dog in a fight.

Marshall:
Boxers call it "the air of invincibility".

Stan:
That's exactly it.

Marshall:
All great fighters have it.

Stan:
Yeah.

Marshall:
Right up until the minute they're beaten. [dissolves into sobs again]