“We had a professor at university who literally started his first lesson with a slide of last year’s average that showed 10% of students passed his exam. If 90% fail your exam but succeed in other subjects, maybe they aren’t all lazy, maybe your teaching sucks.”
The same teacher two years later in sport, we were asked to dive 25 Meters. Those who didn'T made it had to try it the whole year at the beginnig of each course. After one month I was the only one who had to do this. For three more month every swimming class started by: every one was sitting down and I hat to try to dive 25 meters (I was good at long distant running, average basketball player, but was an awful swimmer and not suprisingly I still hate swimming)
Welcome to life, it won't get better.
Read: "Bullyocracy": How the Social Hierarchy Enables Bullies to Rule Schools, Work Places, and Society at Large by Donald Jeffries. A real eye opener!