I only had one experience of a ouija board, when, in my late teens, at a get together with a few friends, one of them produced a board. I was never completely convinced that what occurred was not subject to an element of manipulation, but the "messages" seemed to be gobbledegook, and what would have been the point of that (although alcohol had been consumed!). Only one message came through that one of our number thought related to her fiancée, and she found rather unsettling, but later proved to have no foundation. We never tried it again. I met the girl who had the board later in the Far East, of all places, when she was married to an upwardly mobile civil servant attached to the High Commissioner's office and living in some style. They invited us to supper, and the first thing she said to me before I met her DH, was "please don't mention the ouija board!"