[Iris, who literally picked Dean's brain for information on dealing with his own brand of supernatural enemies, knows a great deal more than the current Dean would have wanted to her, and she suppresses a twinge of irritation at Tiffany's dogmatic certainty.]

You'd be surprised, my darling. But I've never been there either, so I'm prepared to believe what I know about Dean and 'is life. I don't know all the ins and out and I wouldn't break 'is confidence if I did, but I do know it got pretty bloody messy in 'is world.