It's my biggest fear ever since S2 that Sam turns evil and I am very relieved that up and until now they skirted around that, without losing momentum in the story. I have to believe that no matter how they handle it, Dean is able to pull Sam back before he goes over the line. Everything else is too painful to contemplate for me. :)

I am off to bed now as well. Enjoyed talking to you! :) G'night