Bobby Singer: Where do you think you’re going?
Dean Winchester: We got the knife.
Bobby Singer: And you intend to use it without me. Do I look like a ditch-able prom date to you?
Sam Winchester: No, Bobby, of course not.
Dean Winchester: This is about me and Sam. Okay, this isn’t your fight.
Bobby Singer: The hell it isn’t. Family don’t end with blood, boy. Besides, you need me.
From Supernatural – Season 3 Episode 16: ‘No Rest for the Wicked’ (3×16) | Produced by The CW