Throttle lever error nearly destroyed Dash 8's engines

[The Ancient Geek]

It is one of the rules of basic design :-
No matter how foolproof you make a simple control, the world will always manage to produce a better fool.

I knew a man who always squeezed the T handle of the auto transmission of his fancy car. It was only a matter of time before he went past N into R and wrecked the gearbox. The sad part is that he repeated this idiocy twice before selling the car as "a dud".