Dean was dangerous and had killed a werewolf before. In his defense, the werewolf attacked first, though. All in all, he'd much rather avoid the whole thing if he could. Particularly since he hadn't had a chance to feed yet.

"That was the idea. It's night, I'm hungry, and I don't like leaving my car unattended for too long." Seriously. If anybody had messed with his car while he was sleeping during the day, he would find them and kill them.

"Unless you really want a sleepover. I'm not much for campfire stories and make-overs, though, gotta admit."