- Dean: Anyways, now that your back I wanted to go over something real quick
- Dean: *Pulls knife* What's this?
- Castiel: A knife
- Dean: Good, good. And what pray tell do we avoid when it comes to um...sharp objects
- Castiel: I am not stupid
- Dean: That's right! We avoid getting stuck with the pointy end!
- Castiel: Are you done?
- Dean: No, apparently we need to go over some safety *Hits power on projector* That's a soul, we don't eat those or we explode
- Castiel: Dean
- Dean: And who's that? Oh it's Lucifer! We don't agree to be possessed by him
- Castiel: You are such a shit Dean
- Dean: And you're shit at staying alive CAS
Cain said he considered ending Castiel right there when Cas discovered his burial site, so why didn't he? Cain haven't known Dean that well at that point, so how did he *know*?