In my school? I'm not worried about my school, I'm worried about my profession. I joined a national union of teachers, not a school union or a local union. The unions in the UK are ineffective because they're so stupidly caught up in local issues, and ideoolgocai ones relating to the wider society, that they do nothing on a large scale for the profession. Strike for pay, strike for inadequate funding, strike for poor standards of testing, strike for recruitment and retention issues. Actually act like a union and no a political party. "Picnic against testing!" Because that's going to make the DfE quake in their boots. The one tool unions have to combat national level issues is striking. And not one union does it. Some openly refuse to do it.