Hope you guessed my name
Real Live Preacher has a great post on the devil. Yeah, Satan hisownevilself.
One of the topics Christians have to face and decide is the concept and possible reality of evil dude. Is he/it real? Or just a concept meant to keep you honest when it's just you and the cookie jar?
In my embryonic Christian years, I had relegated him and his 'hood to a non-reality used as an empty threat (like, "I'll turn this car around right now if you don't stop that!" when you're 300 miles into the trip). But I met a guy who convinced me of the reality of Stan - as we usta call him on a Christian irc chatroom - and h-e-double-hockey-sticks.
I won't belabor it here, since it's covered better in the post I've linked to, but the fact that Jesus treats him as real - even has a conversation with him - is one of the things that did it for me.
(Btw, in reference to the title of this post: One of the better Rolling Stones songs in recent years was "Saint of Me," which I choose to view as kind of an answer to "Sympathy for the Devil." It doth rock. And, yea verily, it rolls.)