My Ds4 is nearly and has always been bossy which I put down to being the youngest. However, recently his temper has become a real problem. He has always had the usual sort of tantrums, no better or worse than his older brothers did, but he now does seem to have any control over his temper and has recently bitten both me and his granddad in temper.
Today school called me in to say there had been an incident where he had shouted at the teacher (because she told him he had to come out of a play area because he had pushed another child. He refused and shouted that he hated the teacher and said he was going to tell another teacher about her because she was being nasty. He then held his arms out towards her for a cuddle (which obviously he didn't get!) because he was upset! She said she would get the head teacher to come and see him so he shouted again and threw a chair at her! 
I'm mortified and don't really know what to do. Generally he is polite, plays nicely with the other children (he is not often involved in disputes) but when he loses his temper he is out of control. I really don't know how to tackle it. Help!!