i used one once in my friends house, which was supposedly haunted, it was me, him and his little bro using it, we started asking some questions, no big thing, it gave answers, then it started getting kinda weird with the answers, so we let go of it, and the thing continued to move on it's own as we talked amongst ourselves, we were freaked out.  another interesting thing, this same oujia board was thrown into their fireplace about 2 years later after his sister used it and same thing happened, next morning, there was the board, still intact, not a scratch on it, so no, i will never use one.  This was also an original, hand #'d one if that matters.