We have the Producers' Preview for episode 16.
 Wow after 12 seasons Sam (and Dean) have become old skeezers! Mick comes along for the "milk run" and possibly messes things up. He also accuses Dean of forgetting that they kill monsters. I'm assuming it's because Dean and Sam want to cure Claire after she gets bit by the werewolf. Plus we get a subtle tease for a storyline for next year. Sounds like there's a lot going on in this episode. What do you think? Let us know in the comments or in the discussion thread for episode 16.