Franklin Doroteo of Tingo Maria, Peru had a root canal on October 21st. It's been said the two most frightening words you can ever hear are
"root canal" - and that proved true for the 28-year-old man, as he began experiencing fever and chills from the procedure before passing away.

Getty Images

The scene at the funeral home was a familiar one: family members mourning, his friends filing slowly past his prone corpse in his casket until someone noticed his chest was moving. His rib cage appeared to be expanding and contracting.

Panicked relatives immediately phoned for a doctor. Doroteo was removed from the coffin and rushed to a nearby hospital where the confirmation came back, indeed Franklin had died. It seems the dentist gave him diazepam which, in a few recorded cases, appears to stimulate muscle movement even after death. Occasionally, diazepam is prescribed for muscle spasms, so its effects are well known in the medical community to affect the muscular-skeletal system.

Though poor Mr. Doroteo was gone, there are many recorded cases of a corpse not being one. In 2014, Walter Williams, a 79-year-old man, kicked his way out of a body bag while waiting to be embalmed. It seems his pacemaker had simply turned itself off.

In 2007, a 33-year-old man in Venezuela felt an unbearable pain in his face. He opened his eyes to discover he was lying on a table at his own autopsy; the pain was from the doctor cutting into him with a scalpel. The attending examiners quickly stitched up the wound and called his wife to come and pick him up. She found him at the morgue, perusing a magazine in the waiting room.

A 3-year-old Phillipino girl woke up in her casket in 2014. The family's sorrow turned to joy, and they canceled the funeral and took her home.

Perhaps death isn't always as sure as taxes.

In the 17th and 18th centuries, some people were buried with a string leading from their coffins and tied to a bell on their headstones, just in case. With the above-cited cases, it seems even modern medicine can't always accurately diagnose death.

We reported previously that doctors now believe you'll be "aware" for several hours after you're pronounced dead (You'll Know You're Dead).

We hope you don't someday awaken in a pitch black casket under several feet of earth - the sounds of the preacher and the soft, muffled cries of your family coming from above.

Happy Halloween.

Getty Images