Our expert says:
Some teachers and head teachers are indeed both incompetent and arogant, and don't appreciate criticism. I don't see what you have to apologise for, for growing angry when he refused to carry out his responsibility to instil good behaviour in his pupils. He should have listened, investigated and acted, appropriately, not to have started with excuses from the start.
Do your homework --- locate and speak to the education inspectors and those responsible for education in your province. As Kayla says, check if there are other parents who have had similar experiences and can back you.
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