TOD:
I worked for a couple of horses asses in my Navy career. Nothing too absurd to think about because they were both trying to assert themselves in non-assertable positions, but things would have gone infinitely better for them had they been nurturing rather than adversarial. I certainly left both jobs with credibility, great evaluations and moved into even better positions when leaving both bossses. Can't say the same for them when it was time for them to move on. I'd like to think at least one of them, after my departure, came to apprecite what I did for him and what more he might have gotten from me with encouragement and positive feedback.
Oh, well. I've mostly had terrific bosses, including now in my civilian career.