I have heard that Morticians talk to the bodies as they embalm them because the hearing is still believed to be intact for a while.
I had a Buddhist monk once tell me that death occurs in stages, of up to 7 days.
I knew a girl who was in training to be a cosmetician / hairdresser for a mortician. Her first day, as a cadaver was rolled past on a stretcher, it sat up and burped. The girl screamed, but the funeral director said the corpses burp and fart all the time, nothing to worry about.
He told her that if one ever says, “Excuse me,” then the cadaver’s relatives would probably want their money back.