Emma and Castle in “Number One Fan”

You weren't supposed to find out about Billy Koss. I mean, what is the point of a sealed record when the cops can open it whenever they feel like it?

Castle

I'm sure they got a subpoena first.

And I'm sure they all had a laugh off all the adjectives describing me, right? Manic. Bipolar. Violent. Murderer.

Castle

Well, not to be a stickler, but "murderer" isn't an adjective.

I'm not an idiot.

Castle

Sorry. I just get sarcastic when I'm nervous.