"Dvorak entered his typists into contests, and they consistently out-typed the QWERTYists by a long shot. It got so bad that within a few years, Dvorak typists were banned outright from competing. This decision was overturned not long after, but the resentment remained. QWERTY typists were so unnerved by the speed of the Dvorak typists that Dvorak typewriters were sabotaged, and he had to hire security guards to protect them."

https://hackaday.com/2020/03/31/perhaps-august-dvorak-is-mor...