Recently addict to ghost adventures. Anyway, it's really scary. Watching people encounter with ghost is quite a thrill, but it's also maybe frightening at times. Here the link, if you wanna watch.
http://www.youtube.com/profile?user=ptarmigan57&view=videos

Try viewing the Bobby Mackey and the Edinburge Vaults. These two which I found is the most scariest encounter. All the best while watching. =)