[American Constitutionalist]

How about Thomas Edison's deliberate use of animals of proving that the AC current was some how inherently dangerous to humans ?
However cooler minds prevealed and now we enjoy the use of the AC current.

[Ruy Dias de Bivar]

Thomas Edison was a proponent of DC (direct current) electrical power. He tried to prove AC was bad by also being in favor of the first execution by electric chair using the “dangerous” AC power. The prisoner survived several jolts to “fry” him before he died.