I am certainly not discounting other's experiences. I am not disputing that you and your family had experiences. I am discounting the conclusions you are drawing from those experiences. Despite what you may think reality is NOT what you perceive. There is such a thing as reality irrespective of our perceptions. There are a host of explanations that are far more likely that ghosts. Again I am not passing judgment on you or your family. Beliefs can be perfectly reasonable and still be wrong. As a child for a short period of time I believed in Santa Clause. The existence of Santa was supported by the fact that presents showed up and after all, my parents wouldn't lie. As it turned out I was wrong and what seamed pretty far fetched at the time (my parents were playing Santa) turned out to be true. I am not trying to equate your beliefs to that of believing in Santa or your mentality to that of a child. Let me present some alternatives that are more likely than ghosts. Group hallucinations. Perhaps someone was playing an elaborate hoax or con on you and your family to try and get you out of the house. I am not saying that either of these things is likely only that they are far more likely than ghosts which have never been able to be proved to even exist in stark contrast to the very real accounts and explanations and studies of group hallucinations and the reality of human greed.