Stop right there. What? Where are you going? To get cof...
(Luke spots Dean outside the diner and walks to him)
Luke: Stop right there.
Luke: Where are you going?
Dean: To get coffee.
Dean: Excuse me?
Luke: You're not going in there buddy.
Dean: What are you talking about?
Luke: Turn around bag boy.
Dean: Are you serious?
Luke: Do you see a smile on my face?
Dean: No but what's different about that?
Luke: What's that supposed to mean?
Dean: It's just that you're not exactly known as the town crack up.
Luke: So you're a smart guy now, huh?
Dean: What are you doing?
Luke: Just exercising my right not to serve you.