I worked security for a while, at one of those old massive mental hospitals, this one even had it's own powerplant... shopping parade, etc etc. Well it was shutting down and a road being built down the middle, there was still some patients left, the most sick or old. Anyway, we got chatting to the nurses and they would tell us various tales, no idea of the truth of them... Like the nymphomanic female, who was locked up for raping men or a loon who broke out the secure ward and cut off a nurses head with an axe stolen from the maintainence department and was never caught. ...
One was, that some time ago,they had a patient admitted, a teenage girl who was totally psychotic, but it was unlike anything anyone had seen. amazing strength ,saying strange,words, they tried everything to control her /calm her down, she was put on the highest doses of drugs, that didn't calm her, they had to take her off them as the high dose she was on,would have harmed her,. They had to tie her down on a bed, which is unheard of in UK hospitals, at the time as they would just drug people up as it was seen as more humane rather than strapping people down , There she stayed and she was dying. Well to cut a long story short of fukked up shyt, they in the end got a priest, which was sanctioned at the highest levels, and an exorcism was performed . And she lived and regained full health,. Turned out she and her friends had been playing with one of those Ouija boards,which they had bought from a local shop. The shop was closed down by the council.And the board taken away,apparently. Never reported even in the local papers let alone nationally.
Now all this is hearsay, and maybe this girl was just mentally ill and convinced herself she was posessed, perhaps her family were very religious and helped her delusion along and the act of an exorcism flicked a switch in her brain. But in my view, you would be completely nuts to mess with those things, because even if they are bull some people are highly suggestible and it could set something off in them, and also science can't prove or disprove the existance of ghosts, demons spirits etc etc, why take the risk with your health and possibly invite something very nasty in?