Cemetery worker shoots self without gun

From the Sunshine State:

Sheppard initially said the ammunition was on a shelf and one of the bullets may have discharged because he threw a hammer and a string trimmer on the shelf, police said. After being pressed, he told Hudson that he secured the sixth bullet in a vise clamp, placed a metal punch into the cartridge primer and hit the punch with a hammer. [emphasis added]

Article here. Sigh. Sometimes, stupid hurts.