Hedge Fund Homeboys
Season 1, Episode 3
Castle: Who was murdered, and was it gruesome?
Castle: [after getting pinched on the ear by Beckett because he was listening to her phonecall] Next time, put it on speakerphone.
Beckett: I didn't say he didn't shoot him. I said he didn't kill him.
Castle: Is that a Zen kōan one hand clapping thing?