Ghosts?

This is my favorite season and my favorite holiday, Halloween! During this time of year I always watch ghost and paranormal shows like GHI. Needless to say, I am very skeptical but since I have had some paranormal experiences in the past I can't say that I don't believe in paranormal phenomena. Sometimes I think that what we think is a ghost, it could be a moment in time when different dimensions merge...and what we are seeing is actual people from another dimension. I seems possible since some physicists believe that every black hole in our universe is a big bang on other, creating different universes or dimensions. If this were true, can you imagine how many different universes or dimensions   there might be?
Maybe the ghost is wondering who we are and what are we doing on their territory? Is that why they have startled looks on theirs faces when we see pictures of them? And if ghosts are souls unable to rest due to violent deaths...wouldn't we be overrun by ghosts since our history as humans is a violent one?
I can't really say, but I have my own paranormal experience, and it has kept me from being a non believer.
I was 16 years old and had a music box that my mother gave me for the Holidays. It was a wooden antique and played some Santa Claus song. That box started to turn on by itself and play every night for about a month. One day I even took pieces out of it to see if it would still work by itself, of course I couldn't make it work for me.  That night it played again, for a whole 15 minutes. There were other things going on too, like the odd feeling of being watched, doors closing behind me with extreme force and the weird feeling of a heavy object being thrown on my bed as I am laying there to go to sleep. I was kind of scared but finally decided to get rid of it. I threw it in the trash. Next day, I see it again in my dresser! I asked everyone in the house and no one put it there... I was freaking out so the only solution that I found was to put it in a box and hid it in my brother's closet. The weird thing is that it never played for him. Luckily, when I moved out of the house, the music box was nowhere to be found. For some strange reason I felt like it was going to be in one of my boxes, even when I didn't pack it. Since then my parents sold the house, and packed up everything, still no music box. Nor my parents or my brother threw it away, so is still a mystery to me how it suddenly disappeared. As soon as it was out of my room, nothing weird ever happened again...

Have you experienced something similar? If you have a paranormal experience I sure would like to hear it!