I moved to a new place some months ago with my family, and my dad says he has seen a ghost as well as my sister, a friend of my brother asked who was behind him one time he was alone at home and she was watching the webcam, and I haven't seen anything yet, I don't believe in ghosts. And my brother has seen it also.
My sister also used to say there were ghosts in my old grandma house, there were a lot of noises, things falling and doors being closed/opened randomly, that is what everyone used to say (sister, grandparents, aunts...), guess as I don't believe in it, it will not affect me, or maybe i was just too distracted.
But about that house, well, I don't think there are ghosts, unless someone gets to demonstrate otherwise.
Werner from SAL