Dean is attacked by a Djinn (http://en.wikipedia.org/wiki/Djinn), which warps his reality when it touches him. He wakes in a Lawrence, Kansas apartment next to a woman named Carmen. When he calls Sam to report, the exasperated little brother accuses Dean of drunk-dialing him (hearing 'gin' instead of 'djinn') and tells him to sleep it off. After hanging up on him, Sam returns to his research books - which include a law school textbook.
That bit about the law school textbook makes me LITERALLY FLAIL-EY. Why is that riling me up? Sam SAID he wouldn't leave! So...why does my stomach hurt from reading that?