@Alice it's so random, it comes out of nowhere just as soon as he sees his friends! I'm not sure if it could be anxiety related so he's pretending to be someone he's not?
My 6 year old girl is the same too me and her little brother! She seems too do it mostly in front of her bestfriend and her mum and I’ve tried everything even too fine I’ll go home now then and she just doesn’t care ! As soon as she gets in the car it’s like she turns it off! I’m sorry I have no advice but I can fully relate😂😬 as dramatic as it sounds I find it really draining and hurtful because she wouldn’t dream of acting like that at home xx
Tell him his behaviour at school is disrespectful and not acceptable and if he continues take his favourite toy / game / TV or whatever every time it happens.