This is really distasteful. I had, as a student, a row with one of my professors. We chemically hated each other and it was showing (he was mean, so I was mean

This is really distasteful. I had, as a student, a row with one of my professors. We chemically hated each other and it was showing (he was mean, so I was mean as well). Then came the exam (oral) . 6 questions, I easily answered 5 of them, the 6th was extremely difficult (neeed much more time and literature). I told him that the first 5 one are easy but that I could not do the last one because (explanation). To what he said "well, you see, the better, brighter students manage to do it. I will have to just give you 20/20 and not the 25 or 30/20 you could have had as a bonus". He was looking at me as on a spit on the floor. I was looking at him as on a bird excrement on a window. But I told him later that he is one of the most rightful people I know and despite the fact that we will never look at each other in a kind way I truly admire his fairness. Then repeated this to him some 15 years later.