Do you think every ghost has the ability to move items and people in a violent, or friendly, manner? If such a phenomena is true, then why and how can these ghosts have such a connection with the physical world? I've heard in many stories that it's children who often see the ghost(s) in a house where poltergeist activity is said to be happening. One story I've heard was actually from a friend of my family, who moved into their new house (years ago now). She said she would get locked in her room when no one was even in the house with her. She had to phone her husband to come home from work and open her room door. And the front door was locked to start with so no one could have got in. Her three daughters, who are now older, but stil remember the event, remember they all seen a man standing in their room at night time. They screamed and the man just disappeared. Other weird things would also happen such as doors slamming shut, people(ghosts) screaming or shouting randomly.