Castle, Season 4

[After Castle catches the elevator]

Esposito:
What are you doing?

Castle:
What's it look like? Do you think I was going to pass up a road trip to the Boardwalk Empire, the East Coast epicenter of dancing, gambling, showgirls and sin?

Ryan:
You do realize we're going there to investigate a murder, don't you?

Castle:
[putting his arms around their shoulders] Gentlemen, if I've learned one thing, it's to not let a little thing like murder get in the way of having a good time. And also, shotgun.