Trauma and attachment informed practice

Our generally very pastoral school has been demonstrating clearly that understanding of the impact of trauma and attachment is limited to about 3 members of staff. In a secondary school this is a nightmare. Both of our children have been subject to some pretty rubbish stuff and we have written to school to say we want a meeting urgently. Monkey Boy has interroceptive sensory issues cannot tell when he needs the loo and hates asking to use his loo pass as he finds it excruciating having to put his hand up and ask in front of everyone. He got put in inclusion for urinating behind one of the blocks and they just did not get it when I tried to explain - to the Pastoral Care Lead!!! (Ahhhhhhhhhhhhhh) Last week I got called in as he had wet himself - he knew he would not make it to the loo but did not dare go behind a bush given his previous experience so just wet himself. Again no insight from Matron. We wrote to say he was curled up under a table sobbing that he was worried he might lose his temper with people saying mean things about him. They just said we can't find any evidence and we know he lies. We said but he's expressing suicidal thoughts and struggling to tell the truth is a template survival behaviour. They said that's just his way of talking!!!!!!!!!!!!!!!!!!!!!!!!!!!!

So buoyed up by the AUK report and infographic we are mounting an offensive. In my experience just saying staff need training does not work. I know they have had training - this does not change behaviour. In my experience behaviour change is better promoted by changing culture maybe having an awareness week as a start repeated annually with training for key staff and something at induction. Giving all the teachers a coffee coaster with a key message, pushing out the beacon house animations etc etc. However this is all for medium term we need action now. Has anyone had any success changing culture at their secondary school and how did you do it? Thanks