I completely believe in spirits and ghosts. I think that people are only afraid of them because it can't be explained with science, and therefore it shouldn't happen. I've had a couple experiences both recently and not.
The first one was when I was about 4/5 (I only have vague memories of this, alot is from my parents telling me what happened) I was living in Indonesia at the time, in a house that had only just been finished. We had had a quinine tree in the garden, and much to the disapproval of the villagers, it got cut down. They all believed that it was haunted, as our house had been built on a muslim burial ground, and it was where all the spirits would go and sit or whatever, mainly one woman was seen, sometimes others with her. Anyway I was asleep in my room, and my parents were sitting in the living room watching TV. I went in there and told them that I had a lovely dream that a pretty lady was tickling me, and I woke up and she was really there. When I was asked what she looked like I said that she had pretty long hair, and she was wearing a white dress with blue bits on it. They dismissed it as an overactive imagination, and sent me back to bed. It was only after that that we found out that muslim women were buried in white dresses with blue around the neck, sleeves and around the bottom.
The second was a couple years ago now. We were at a mates house doing ouija as we thought his house was haunted and decided to check it out. Anyway we started and couldn't make any sense out of it. After a few minutes we decided 5 more minutes, and if nothing happens we'll give up. After a couple of minutes it started moving, to start with going in slowish circles around the board and then it started going back and forward straight across the board. We all let go and the glass shot off at the wall. We expected it to smash, but instead it smacked into the wall and got lodged into the brick work.
And last, in the house I'm currently living in when I'm in my room (which happens to be one of the oldest in the house) I can feel someone there constantly. Not someone terrible like there out to get me, but a nice person. Like if I'm upset or whatever I can feel them trying to calm me down, or if I'm sleeping I can always hear someone breathing.