Has anyone had any experience of a very angry child? He's 4, perfectly behaved at school nursery, perfectly behaved at grandparents. It's about 50/50 at home whether he's lovely and fun or a real handful. It's like a switch and you can see in his face this anger and he lashes out at his sister (6) and us. Punishments like timeout or going to his room make him more angry. Any removal of toys/ treats make him more angry. I'm happy to push through this but I'm not sure it's the best way to work it. Only today he's hurt his sister and me. In the last few months we've cut back on screen time and increased outside play to try and keep a healthy 'mind' but we've noticed no improvement. Triggers can be anything from his sister asking him a question to me saying no to crisps. I'm worried I've got a very unhappy child and I'm not helping him. Any advice/tips/ experience?