Did you have a teacher like that?

Story time -

In my 12th class/plus 2, my physics teacher refused to take my viva for God knows what reason. If one fails in viva they cannot sit for mail exams was the rule. Even though my journal was complete and all assignments submitted on time he refused to take viva and threw the book on the floor and insulted me in front of the whole class. What he did not know was my father was a student of the principal of that jr. college. Later that day, me and papa went to meet the principal (my dad's teacher) and the principal made my physics teacher give me full marks in viva then and there. What an epic reaction that was when he got to know how I'm indirectly close to the one who pays for his salaries.

All of them.