Demostration Ends in Knife Death

Mark Wagstaff, 30, owner of a security equipment company, was killed during a demonstration of a bulletproof vest to a businessmen’s club in Oklahoma City. The vest failed to stop the knife. (The Associated Press, 10 October, 1982)

Dishwasher Accident Killed Woman

Jane McDonald, 31, from Airdrie, Lanarkshire died after she slipped in a kitchen and landed on a knife sitting upright in a dishwasher.