Once when I was a medical student I was asked to see a patient in the psychiatric unit of the emergency room. I walked in with my short white coat and clipboard and asked the guy what brought him in today and what was wrong. He looked me dead in the eyes with foamy saliva dribbling from the corner of his mouth and a strange smell in the air and said “the devil told me to kill you and kill myself.” He was sweaty and his eyes were bloodshot and his wifebeater had dark red/brown stains on it. The door was behind him and I wasn’t sure I could make it there before something bad happened. No idea if he had a weapon on him. I was afraid of calling loudly for help, I was in a quiet corner of the ER and I felt like I would have had to yell to get attention and I didn’t want to startle him. I stayed there for a half-hour and asked him more questions. Slipped out when he started to look sleepy.