When I used to be the GM at Night of Fright the actors would try to scare me..... It never worked because I always knew they were gunnin for me. Never had the customers scare me either... But when I was working alone painting a room one particular evening I started hearing things. I'm all alone and there was intermittent noises coming for the very next room. I grabbed my 6d cell mag light , ready to clock someone over the head....and went on a search to see who the hell was "F"ing with me. I found no one....needles to say I locked up and called it a night. It just unnerved me to an extent that I could not shake the feeling of being watched!
Now on the other hand the dude that owned the place...well I probably made him jump out of his skin some where around 159 times in about 6 or 7 years. Mostly by accident and because out of habit I would walk into a room with stealth.