Dean and Sam in “Unfinished Business”

Dean

I just think it's really interesting, this sudden obedience you have to Dad. It's like, "Oh, what would Dad want me to do?" Sam, you spent your entire life sluggin' it out with that man. I mean, hell, you picked a fight with him the last time you ever saw him, and now that he's dead, now you want to make it right? Well, I'm sorry, Sam, but you can't. It's too little, too late.

Sam

Why are you sayin' this to me?

Dean

Because I want you to be honest with yourself about this! I'm dealin' with Dad's death! Are you?