I worked as a forensic nurse in a hospital's lock-up unit. We had one older lady who swore she was being haunted and abused by a demon she would call Tiberius. So many crazy things happened while she was on the unit. We'd go into the room, do normal care, leave, and seconds later she'd start screaming bloody murder. We'd run into the room to find her looking like she'd been in a fight with a boxing champ—bloody lip, black eye, markings all over her body. No one ever saw her doing this stuff to herself. Things would get moved around the room by themselves. At one point she was in protective restraints because the doctor thought she was hurting herself. There was no way she could have moved or done anything to herself while in these restraints, but new marks would always appear or her tray/cart would be across the room. The room was secure so there was no way someone else was doing this. When we asked her questions, she'd just say, "It was Tiberius."
After she was discharged, we always had trouble with that room. If there was going to be a rapid response or code, it happened in that room. One night a guard reported lights blinking on and off. It was that room.