Many years ago, I had a friend who had very severe epilepsy. After a seizure, he would go into a deep sleep.
Once, while in hospital, he had a seizure while going down a flight of stairs. Battered and bruised, he was in the deep sleep phase in a two-bed room. Sadly, the man in the next bed died, and a priest came to give him Last Rites. The priest arrived, saw poor Mike lying there unmoving, all battered up, assumed this was his "client" - and proceeded to give him Last Rites.
At this point, Mike woke up. He said afterwards he didn't know which of them got the bigger fright, but he reckoned the priest did!