What scared me the most was when I was about 16, we went to a haunted house and there was this guy creeping around all the people waiting in line. Then he would pick out one person to follow through out the house. (this happened to be me)
As we were walking in the house, he made sure I saw that he was in front of me, then after I walked through the first room he jumped in front of me. Then from then on he was following me, then he'd already be in a room when I'd walk into it.
Then... the last room of the house, was PITCH black, they let a small group go in, then shut the door, and all you can see is a light comming from inside a coffin.... then they turn some lights on, and THAT SAME GUY JUMPED OUT OF THE COFFIN AND REACHED FOR ME!!! I ran out of the house and he chased me down the street to my car!!!!!
OMG I will NEVER forget that one!!!