Nick: Look, why don't you just check my wallet?
Kate: (looks at his ID) This is fake... no it's not. Chicago Police Department. Officer Nicholas O'Malley. Special Unit Two. What did I see? What was that thing? What is going on here? (Puts wallet back in Nick's pocket)
Nick: You'll find out when I take you to the station house... If and when you take your hand off my ass.
Kate: (pulls her hand away fast) Sorry.