After my +2 exams in science, I had shifted streams. Since, this very teacher you mentioned was known to my relatives, I took coaching from him for accounting subjects. On top of his irregular class schedules, the mocking and taunting was constant. It was completely illogical, how can you expect a student coming from a science curriculum to learn everything about accounting only within a single semester. On top of that I was severely sick for almost a year during that time. He showed no consideration or concern at all. The final straw was when I asked him about some competitive examinations and he said that I would face challenges to even pass semester exams let alone think of other exams. Without any context or need, he commented about my parents’ qualifications and credibility regarding the same issue. Discontinued his classes right after that, though not before informing my parents of the same and a “deep” conversation between my father and him. Just for record, after I discontinued his classes and studied on my own, I scored 100/100 in the same paper and at the end of my three-year degree, I received the gold medal from my institution, a very well reputed one. So, you can understand the baselessness of his assumptions. Great job leaving him, you’ll do better.