[Karunamon]

Even the most careful, thoughtful, and professional person will screw up at their job sometimes. It's only if the same screwup is made twice that jobs should be on the line.

The first time is a learning experience, the second time is a demonstration of incompetence.

If you can all your competent people the first time they make a mistake, suddenly you won't have competent people anymore in your misguided quest for perfection.