I went to a school run by priests [hence my love for buggery and men in dresses] but I had the beejeezus scared out of me by one of the younger Brothers telling about how the crystal they were using started going mental and tried to smash itself against everyone in the circle

I tried explaining to a bird the other night [she suggested doing it in a graveyard] that spirits don;t hang around them anyway, they hang around where they die?

Go somewhere old and try it, but if it's REALLY scary, don't tell me