The existence of ghosts/supernaturual happenings? (Read details)?

I recently read in a magazine about a woman who was a real 'ghost hunter' and she was explaining how she had been flung around the room by spirits and had to exorcise herself and get rid of ghosts in her daughters bedroom. So many people have views on this topic and I would really like some answers. So please may anyone who claims to have ghost encounters or has any views about this. Please answer :)