Back in the late 1960's, a close friend and I used a Ouija board in her basement rec room. We were both (back then) precognitive and had other unusual psy abilities, so I suppose it was inevitable that we'd try something that was currently so wildly popular. The board purported to host a number of entities, one of them my friend's recently deceased young daughter, who told her where to find some lost (very important) keys. Which were exactly where she said they'd be.
But one day the "speaker" coming through was quite nasty and I began to get scared. I was too shy to say so, but it knew and threatened me with what it would do if I stopped playing. That, of course, scared me silly (or silly-
er, rather

) and my friend and I nearly jumped out of our skins as every open door in the house suddenly slammed shut
There was almost no wind that day and no open windows or doors to the outside, so it was completely anomalous. One of the doors (to a powder room) was only a few yards from where we were sitting and it slammed so hard that it shook the flimsy tract ranch house's basement--all the furniture, including the table at which we were sitting, shuddered visibly.
That was the end of playing with Ouija boards as far as I was concerned. But my friend managed to convince one of her most psychic sister to play and even more alarming stuff happened, most of which I've thankfully forgotten in the 40 years since then. I have a feeling that, like most psy-connected things, the abilities and mindsets of the players determine the results. But if there are mind control agencies involved then the possibility of "feeding" desired info arises. The CIA's Operation OFTEN began in 1969, I believe...
LilyPat