And if so has there ever been a Buddhist Exorcism that expelled the demon?
I'm just curious as to why Christianity is so full of them,
yet I have never heard of Buddhism ever having anything like it.
I always concluded that maybe Christianity had demons in it
already that's why it has had such a bloody history, I dunno.
Because I read this book, The Dark Side of Christian History:
http://www.amazon.com/The-Dark-Side-Christian-History/dp/0964487349/ref=sr_1_1?ie=UTF8&qid=1332811610&sr=8-1
On Yahoo Answers, anytime somebody asked about how to cast a demon out,
I would copy and paste this answer:
Buddhism has never had a case of demonic possession, or a need for Exorcisms, or problems with ghosts or demons, that should tell ya something. The cross thing-a-ma-jig doesn't work like people think it does, ya need something more powerful.
Acquire the Protection of the Buddha.
Wear a Buddhist Swastika Necklace for protection. You can get them from here: http://www.ezluxe.com/accessories/index.php?main_page=product_info&cPath=71&products_id=363&zenid=a91ca5f8a4bbc647b0823018c387352a
Of course, I really don't know, so to be sure, I figured I ask and see if anybody knows anything.

very imported message, which should be always in mind. We do not free us from them but we free us from the fear of them. And therefore the support of the suttas, which should be understood and not only chanted.