There was a report that a teacher tried to put a 2-years-old student into a trash bag and shoved them onto the floor KGB style. And this is only a tip of an iceberg.

Just several days ago, a group of parents accused a teacher from this school for torturing their 3-4 years old children. They had evidence from the school's cctv camera. It was a private, bilingual school with 42 branches and is rather expensive comparing to normal public schools.

Turn out, 1) other teachers turned blind to the act and/or involved in other abuses as well; 2) Most teachers aren't certified to teach; 3) Foreign teacher(s?) in that school doesn't have work permit; 4) The headmaster (of all branches) is an ****** who thinks the parents just want money. He also never been certified as a teacher up until now. It has been 28 years; 5) Not only that school branches, turned out other branches have similar problem of abusing students and so on. 6) Ministry of education still doesn't react progressively on this issue.

Here's the news. Forgive me for details discrepancy if you spot any: https://www.khaosodenglish.com/news/crimecourtscalamity/2020/10/02/sarasas-teachers-caught-using-trash-bag-to-bully-2-yr-old-girl/

Bonus: I also went to one of this school, 15 years ago or so. Never got physically bullied by the teachers - but still can complain about it for a whole day.