I was still a volunteer for St. John's ambulance at the time, when our town did a mock disaster scenario.
My wife's family where in a drama troop so they did full on make-up as victims for the exercise.
My one brother in law was a DOA, there was a mix-up and instead of placing him in the pretend morgue with everyone else, they accidentally put him in the real morgue.
He doesn't know how long he was under the sheet before he stuck his head out and looked around.
It freaked the heck out of him