Dean: We can't save Cass if we're stuck in some hospital, okay? Just like I can't strap on a time machine, go back, and tell Cain to shove that Mark up his ass. Or stop you from releasing the Darkness. Now, have we made mistakes? Yes. Hell, yes. And we can analyze each and every one of them over a couple of frosties when we're old and farting sawdust and out of this room!
Dean: Oh, you good?
Jenna: Baby. Poop. What could go wrong?