During my 12 years at NJA I never saw anyone I thought was abusing the fatigue policy. Now for writeup's, yes. But remember when the CEO we had suddenly departed after some insider trading issues with a chemical company. He was replaced by the corporate attorney who had come to NetJet's from his Dad's law firm that specialized in keeping workplaces union free. We had pilots who had "no fly" in front of their name. I flew with one during the bad old days. After grounding the 5th jet I said "no fly XX", "your an ace!". We went on to ground 2 more jets. A single floor level emer light being out was technically grounding. One PIC I flew with discovered the red floor level emer light was in the wrong row, they had put a white one at the emer exit when it was supposed to be red. Grounded until a mechanic could come swap the lights. And lots of other little things like that. That's really all the leverage we had against a CEO who wanted to neuter the unions at NJA.