Yes, definitely open a window to let the soul out.
I'm sure I've got some tales, there was always urban myths going around the hospitals.
Firstly, the ward where whenever the call bell rang in the top bathroom when empty, someone would then die.
Another story was on a night shift a nurse prac was on their way to a cardiac arrest. As they were arriving to the ward, a lady was leaving. On arrival, the person in the bed was the person they'd just seen on the way in.
Another story was patients calling nurses in the night to say they could hear babies crying. The ward used to be a maternity unit before it was moved to another site.
I bet every hospital has the same stories, to be honest. Everyone loved telling them on a night shift.
The scariest thing that ever happened to me was as a newly qualified nurse. I was working a night shift, and my friend was working on the ward next door. We took our break at the same time and met outside the ward for a chat. As we were chatting the all the lights went off. We both hot footed it back to our wards. They were sensor lights we'd obviously stayed still for too long, but we were in our early 20s and scared in the middle of the night 🙄
The only place I wouldn't stay alone was in the office when we were based in an old sanatorium hospital.