Never posted on here before so thanks if you're reading! Friday afternoon, whilst I was teaching, my headteacher came and pulled me out of my classroom and shouted at me in the corridor for sending a child away from my full up classroom. She then said I was "putting up barriers" and needed to think about the emails I'm sending, and then said I was to see her Monday, then before I could reply turned and walked off down the corridor. Completely shocked I then went back in to my classroom to find the children inside asking why I'd been told off. The head is known for unreasonable behaviour towards individuals, and I've been on the receiving end before (after returning to work after a miscarriage and when I was later pregnant) but this was extreme even for her! And now I have no idea what I'm walking into Monday. Any advice? Go to union?