In the 90's I worked as a security guard and one of the businesses that contracted us was the local hospital. On top of the usual drunks, addicts, etc, we were also responsible for checking the "guest list" in the morgue. Every two hours we were to go through the drawers and the "meat locker" and check each "guest's" toe tag against an inventory sheet, to make sure everyone was always accounted for.
I worked night shift there for almost 2 months and nothing weird happened, except for a call button that liked to go off in an empty room... But that could have been a mechanical problem.
On what ended up being my last night there, I had a college interview in the morning so had to get off work a half hour early. I always made my morgue check at straight up the hour, but because I was leaving early, I did my last check of the night a half hour early as well.
Like most hospitals, the morgue was in the basement and the acoustics down there were such that every sound echoed slightly. I got off the elevator, and started down the long hall to the morgue, my footsteps echoing as I walked. I started hearing what sounded like people talking, which was nothing unusual in itself, late night arrivals and attendants working late was commonplace, but this sounded different. The voices, especially the couple of laughs I heard... I still can hear the laughs, had a hollow, kind of distant quality to them... And there was more than a few of them. I was officially creeped out.
As I got 25, 30 feet from the morgue I hear a man say, "He's coming!" and an old woman respond "He's early." I quicken my pace as I hear a hurried commotion and mumbled voices, and gave a shout on my walkie for backup in the morgue.
I bust into the morgue not knowing what to expect... And there's no one there. I look in all the rooms, under and behind all the furniture... Nothing. Than I see it. Laying on the floor by the drawers is a toe tag.
I start opening the drawers expecting to catch someone hiding in some of them, and find no one but the "guests". The third one I opened ended up being the owner of the orphan toe tag. Three other guards came down and we did a full search of the whole floor, found no one.
What freaked me out though was I had been checking the bodies all night, some had been here a couple days... And so I kind of knew what body was where. When I did my search of the drawers, almost half of them were in the wrong ones!
I quit that day.