They don't discriminate—any Tom, Dick, or Harry can get hired.
1. From your colleagues to your managers, they're all any Tom, Dick, or Harry.
2. By law, you can only work 4 hours of overtime per day, so the company legally doesn't pay you overtime for any hours beyond that. If they don't pay you, it doesn't count as overtime, so it's not illegal—right!
3. No one will “discuss” things with you; from above to below, it's all instructions. And the instructions are always very vague—you have to guess what the real objective is.