I searched for you to find out, which is how I discovered that people are making a fortune off survivalists and preppers who are apparently terrified of EMPs. But here’s some nice, sane shipping ones.
What if the employee was completing their share of the work load faster, and had spare time? Is that time necessarily the sole monopoly of the employer? If they were a contractor, you’re paid for the completion of the task, not the hours. I know the expectation is different with an employee, but this does change the insensitive to work faster, or better than your peers.