Found this on Reddit, courtesy of 011191.
Visited my great-grandfathers grave today when WTF!!!
His grave was covered with a sheet of corrugated tin for more than 70 years (his last request, I’m not sure why). It was removed a few months ago. Went to visit it today and saw that this had happened.
The hole was about six feet deep in total, as far back as the tape would go. I suspect the casket caved in, but I thought it was strange that it collapsed in only a small circular section…
Is this guy’s grandfather the first returner of the zombie apocalypse?