I am a part of ESP a paranormal investigation team and in my past experience do not use Ouija boards! In the place we would investigate often they do tours and someone brought a Ouija board with them.... after that we would hear doors slamming and yelling captured on our voice recorders. A few years after that everything is peaceful there and the activity is peaceful. You never know what you are talking to when you use a Ouija board so be warned!