When I was Younger, around the age of 13/14 I would go hang around my best friend's (Sophie) house. Now we both loved the idea of ghosts and she told me how her house was actually built on a cemetery. She had told me previously there was a lot of weird happenings at her house, but one day as we sat in her room she told me how one of dolls would switch itself on.
Of course I demanded that she show me. Sophie removed the batteries and attempted to try and get it to move. Now this doll would move and play a tune at the same time but was battery operated. But the doll didn't move. After a while, we gave up and placed it at the far end of the bed by the pillow, while we sat on the floor the other end of the bed. We chatted for awhile when suddenly the doll moved and played its tune (still with the batteries removed), it moved so that its face was looking directly at us! Totally freaked, out we ran out of the room.
The other time, I came round her house, I refused to be left alone with the doll. Of course, she managed to lock me in her bedroom with it and of course it played its tune again. This time I was so scared that I grabbed it and Broke it (Ripped the wiring out).
Many other freaky things happened in that house but she has since moved.