Dean and Bobby in “Unfinished Business”

Dean

Surprise.

Bobby

I, I don't...

Dean

Yeah, me neither. But here I am. [Suddenly, Bobby attacks Dean.] Bobby! Bobby! It's me!

Bobby

My ass!

Dean

Whoa, whoa, whoa, wait! Your name is Robert Steven Singer. You became a hunter after your wife got possessed. You're about the closest thing I have to a father. Bobby. It's me. [Bobby attacks Dean again] I am not a shapeshifter!

Bobby

Then you're a Revenant!

Dean

All right. If I was either, could I do this with a silver knife? [cuts his arm]

Bobby

Dean?

Dean

That's what I've been trying to tell you.

Bobby

[Bobby hugs Dean] It's... it's good to see you, boy.

Dean

Yeah, you too.

Bobby

But... how did you bust out?

Dean

I don't know. I just, uh, I just woke up in a pine box...

Dean

I'm not a demon, either, you know.

Bobby

Sorry. Can't be too careful.