This. A mistake like "accidentally turning the machine off when it shouldn't be" is a fixable problem. If someone has attitude like "fuck the checklist, I kno

This. A mistake like "accidentally turning the machine off when it shouldn't be" is a fixable problem. If someone has attitude like "fuck the checklist, I know better", it is not really a mistake, and that person should be rightfully fired or at least moved to a position where they cannot do any harm.