So, do you believe in the paranormal? By paranormal, I mean demons, ghosts, spirits, black/voodoo magic, prophecies. Things that you can't see, haven't been conclusively proven true, but are possibly around. And nothing religious or "proven via religious means" (e.g. God, Satan, angels, hell), because I don't want this ending up a flame war about religion.
Where I come from, the paranormal is accepted as a truth. People might joke about certain things related to devils and other religious things, but almost nobody messes with ghosts. It's not even a religion thing, the same stories of possession happen with pagan/christian/muslim friends as well.
Pretty much everyone I know has heard a story about ghosts. I know a good friend whose claimed to have gone through a long exorcism, after swimming in a haunted pool. I have an uncle who tried to contact spirits with a few friends. The 'spirit' gave them correct lottery numbers, only asking for some KFC placed near his tree when they win it. His friends tried contacting the spirit without him a week later, and he claimed that he suddenly went berserk at a party at the same time they did it. Also, some stories about some of my neighbors being possessed/attacked, because they live near the forests.
Personally, I wouldn't dismiss it. I've just been in a hospital recently. Ghosts aren't really the first thing to come to mind when visiting a sick friend, but there's a really odd, creepy feeling inside. The food, maternity, and waiting areas aren't so bad. But the corridors from the ambulance to the emergency rooms are creepy, as well as certain emergency wards. I'm a little surprised to find out that everyone's feeling the same way near the same areas of that hospital.
What I find interesting is that when I ask people around here, "Do you believe in ghosts?", they reply "What do you mean do I believe in ghosts? Of course they exist." I'd sort of like to see what you westerners think of it, since movies always portray a very skeptical point of view.
If you have an explanation why, by all means say so. It could be that the very belief of ghosts makes you more susceptible to "possession". I mean, heck, typing this alone at 1.30 AM gives me an odd feeling that something's about to possess me suddenly. Could that explain ghosts jumping from one person to another, or group possessions? Regardless of culture, we all felt some odd, instinctive fear from playing Silent Hill.
On the other hand, it's odd that western media developed the same portrayal of ghosts separately from the east. There are words for the paranormal in many different languages. Plenty of cultures fear ghosts that lurk in woods. Many have a bloodsucking one. Almost every culture expects ghosts in graveyards, hospitals, and murder scenes, without contact with each other.
And this has to be repeated in the OP, but no discussion on religion. That's just going to derail things and lead to a perpetual fireball. You can start another thread to talk about it if you like. Go on and argue for or against paranormal stuff, but not about religion.