Here is an paste from the Urban ledgends page:
(Get 4 10 pound bags of Sugar
and try to imagine having that much stuff impacted in you and not knowing it. Pretty unlikely)
They don't do autopsies when you die in a clinical setting and/or death from disease was expected as in John Waynes case.
"Even if we discount the medical possibilities, the prototypical John Wayne example is still a demonstrable lie: No autopsy was performed on John Wayne when he succumbed to cancer in 1979. The medical examiner's office had no reason to hold an autopsy since Wayne had obviously died from natural causes, and hospital pathologists had little to learn by requesting the autopsy of a cancer patient who had already undergone several major surgeries (and Wayne's family would almost certainly have denied such a request). In fact, Wayne's relatives were so intent on fending off a crush of media and fan attention after his death that they hired a security guard to block access to his hospital room, had his body quickly and secretly transferred to a mortuary, held a funeral service attended only by family and a few friends at 5:45 in the morning, and had him interred in a plot without a headstone. Nobody had the chance to perform an autopsy on John Wayne, much less to "run his gut" and weigh the amount of fecal material found within. (Wayne did undergo surgery for an intestinal blockage about a month before his death, but that blockage was caused by the spread of the cancer that was killing him, not by an accumulation of waste products.)"