I have seen a few things, and I am really loving this thread! One of the first things I saw happened to me back when I first graduated from nursing school back in 1994. I was working graveyard shift with an LPN who actually was showing me the ropes, although I was over her. The hospital I worked at was an OLD psychiatric facility, and the unit I worked on was a big, open room with curtain dividers for privacy, although those were hardly ever pulled, at first. You could stand at the front of the ward and see all the patients at one glance. At the far end of the room were the more rowdy of the group of patients, they would reach and grab you if they could. It was a little darker back at that end of the room. One night, I was sitting at the desk, and I looked up just in time to see what looked like a patient going from a squatting position to a standing position. The figure was all black, and once it stood up, it moved to my left towards the corner of the room, and into the wall. I asked my LPN if she had seen it, and she just looked at me and smiled. She said, "you will get used to it". After that, I tried to avoid staring at the back of the ward. I was afraid of what I might see!