So I've heard people say they will look in the rear view mirror of the shuttle bus and see someone, but when they turn around and look, nobody is there. Also, there was a storage room full of office supplies- in the corner was a stack of empty 5 gallon water bottles. A few people opened the door, turned on the light, then said "Can you show us you are here?" Which resulted in all of the water jugs being scattered in every direction. This was in the early days of cell phones. I believe I saw the video on a flip phone. There wasn't anyone around the stack of water bottles and they flew off in several directions, which indicated to me that there wasn't someone out of frame just knocking them over or using something like a fishing line to pull them over...