Psychiatric RN here. Absolutely.
My first job was in a small, 35 bed psych hospital in California. It used to be a medical facility where surgeries were performed and, of course, people died.
A couple stories here. First off, when I’d work night shift, I’d sometimes get a phone call from the local police station asking if everything was okay. Sure, everything was fine. All the patients are asleep and it was just a normal night. The police then said that they received a 911 call from our hospital and the extension from where the call was being made was the arts and crafts room (NOBODY goes in there at night, not even staff. It’s always had a creepy vibe and used to be where surgeries were performed). The caller, identifying herself as Satana, was asking for help.
This would happen about once a month or so. Night shift didn’t have much staff, so as supervisor, I knew where all my staff was because I would be the one to help relieve them during breaks. I know with 100% certainty that no staff or patients were the ones calling 911. I know it wasn’t a patient because psych hospital doors are locked and to get to that room, a patient would have to cross 3 barriers of passcode protected doors.
At other times, our PA system would turn on randomly, usually after 10PM, and you’d hear breathing and beeping machines (none of our equipment beeped). One time in particular, the PA turned on and you could hear what sounded like a kid speaking but the content of what was said couldn’t be made out. Then it stopped. Then started again and then you could hear what sounded like an outgoing call playing through the PA. This was impossible to do because to activate the PA, you pick up a phone and dial 77. Once you do that, you lose a dial tone and cannot make an outbound call. So anyhow, the PA played an outgoing call for hours, yet not a single phone was ringing in the hospital so we weren’t sure what was happening, let alone how.
It finally stopped around 6AM and our patients were pissed. Imagine trying to fall asleep to that. To this day, nobody knew how that happened and the technician we called out at the time thought we were pranking him.