I was in two minds about watching, but shall now have a look at it.
I retired from my permanent post about 7 years ago. I was in middle management, so much of my time was taken up with dealing with discipline.
By the time I quit my job, it had become noticeable that more and more parents absolutely refused to accept their children had done wrong: it was the fault of school staff; staff were lying/picking on their child; the child had a difficulty which explained and/or excused their behaviour.
I recall one child who obsessively used some kind of portable computer game. When told to put it away, he'd angrily assert that he was allowed to use it because of his ADHD. I think that that translated into his parent giving in for a quiet life.
I found out that the boy had shoved another child against a wall in Woodwork and had held a screwdriver against their throat. There was no suspension.
I keep expecting to see his name in the paper some day.
Latterly, parents and their children would claim that we had to be more understanding because the children had "behavioural issues" as if this were some kind of professional diagnosis.
I had one boy in S3/Y10 who swore at me every single day that he was in my class. It turned out that he was a free transfer [managed whole school transfer] from our neighbouring school.
He'd been in the habit of beating up other children. One day, a boy two years younger had been successful in defending himself. According to the bully's parents, their son was the victim...so he landed in my class.
it was clear that he was dismayed to find himself in a position where a woman had authority over him. Normal strategies didn't work. In the end, I resigned myself to calling for a duty manager any day the boy attended my class. It didn't make me popular with the SLT, but I reasoned that I wasn't going to tolerate being sworn at by a teenager.
SLT: "Was he actually swearing at you? Were you meant to hear it? Maybe he said it while he was walking away?"
Teacher too old to care: "Yes, he was swearing at me. I told him to take a time out. [Our classrooms had windows open to the corridor, so you could give a 2 minute time-out whilst still observing the pupil.] He was yelling 'Fucking bitch!' whilst banging on the window and threatening me."
He was still at the school when I went back on supply. By then, he was on a reduced timetable, agreed with the parents. (I'm not sure whether that happens in England. It seems to be happening more and more in Scotland. The school can't cope; the parents won't back the school, but they'll agree to a reduction in the child's time in school.)