Name changed for this. Will keep details murky for obvious reasons.
I am support staff and was working with a dysregulated KS1 child today. The child agreed to move to a separate allocated space but became further dysregulated. The headteacher came to 'support' and shouted so loudly that the child jumped and whimpered. This was heard by staff and presumably children in a neighbouring classroom. The child (exactly as predicted by their behaviour plan) doubled down and didn't respond to demands to follow instructions. The HT told them that their behaviour was ridiculous, not even a nursery child would display their behaviours, etc. It did halt the escalating dysregulation, so was this a strategy that was called for in this instance? I felt extremely uncomfortable with the interaction and don't really know what to do now. Afterwards, the HT did suggest that they were playing "good cop, bad cop". So I don't know whether they were admitting they went a bit far, or whether I'm now 'in on it'.
Historically, I have heard the HT shout before, but this time I was the only other adult present. The HT also whisper talks within earshot of the child about them being difficult, can't wait for them to leave, etc.
If it were my child (one of whom has SEN and attends the same school), I would be taking this further. I am ashamed to say that I am afraid of doing anything in this instance and damaging my prospects at the school. Not only for myself, but for my children.
I'm not part of a union. I do have a good working relationship with other senior leaders. For what it's worth, I really enjoy working at the school, my colleagues are fantastic, and my children are thriving. There are a lot of complaints about the HT amongst staff, but they are never taken further.
In addition, I am neurodivergent, have a very strong sense of justice, and am ruminating massively. Any perspective would be really appreciated, if only to calm my anxiety about the situation. Thank you.