Inventors killed by their own inventions
Wikipedia’s list of Inventors Killed By Their Own Inventions. AKA: Further evidence that the biography of Thomas Midgley, Jr. would make a great opera. (Via Paul Kedrosky)
Franz Reichelt (d. 1912) attempted to use this contraption as a parachute. Reichelt died after he jumped off the Eiffel Tower wearing his invention, which failed to operate properly as a parachute.