I have to partially hand it to Nicki Aycox, because I think she does pretty nicely in the scene that follows. Something about her face seems more delicately tuned, and her delivery isn't quite as nonsensical as it has been throughout the season. Sam starts speaking in Latin. Short Lip asks, "An exorcism? Are you serious?" Dean tells her that they're going for it: "Head spinning, projectile vomiting, the whole nine yards." Sounds like a regular old Saturday night for Matthew Perry. Sam continues Latinating and Short Lip starts groaning and breathing heavily. Dean tells her that she'll burn in hell unless she tells him where John is. Short Lip is tight-lipped and Sam continues his Latin. Short Lip starts shaking, her cheeks flapping this way and that. She chomps and slobbers and spits that John begged for his life. Her voice is getting that high-pitched hissing demon quality. Dean really goes off the deep end, leaning in real close and telling Short Lip that she's sick. I'd say that telling a demon that it is "sick" could be filed under "redundant phrasing." Then Dean tells Short Lip that if she killed John, Dean will "march into hell and kill every single one of you evil sons a bitches myself." That will be, of course, right after he finishes flogging that strained metaphor to death. What would be the point of going to hell to kill the evil things that live in hell? Would they care? I mean, they're evil. And, um, already dead. Sigh.
Sam: "Latin, Latin, Latin." A wind stirs up inside the house. Dean keeps asking where their father is.