My worse teacher would probably be a teacher I had while I was in high school.
She was serving as a youth corper and had been assigned to teach our class mathematics. She was the type that didn't care about what happened in class and only focused on those who were seated in front of the classroom.
I usually would go for the seat closet to the blackboard but I didn't resume that term on time. By the time I resumed, the chairs closest to the board had been occupied. This period was one of the worst for me as a student because it was Ss1(Senior secondary school 1). It was the period that formed the foundation for the remainder of two years that the senior category of secondary school was supposed to cover.
Mathematics had always been my best subject and even during the Junior West African Examination, I had one of the highest grades in the state. That was how much I lived the subject. However, on getting to higher classes, this youth corper's method sucked the passion out of me and I started losing interest in the subject.
From Jss1 (Junior Secondary school 1), I don't think I ever scored below an 'A' in mathematics. Yet, when this lady came around, I had a condemning 'C'. It was totally unbelievable. There was absolutely no way that should happen.
Although I still managed to top my class as the overall best student, I can't forget that period and what it did to my passion for the subject. The corper only lasts that term though as she had to be replaced with another teacher while she went to the junior section.