Take the time and ask the child what is triggering their response. Sometimes you have to do it when you aren’t in the situation. It’s usually something else that is making them upset. Talk to them when they are calm and see if you can find out. Also make sure they aren’t taking too much Ritalin or whatever they may be taking. Sometimes they think more is better but it also can amp up their frustrations. A specialist in the field had my son taking so much that he was a totally different person. I couldn’t believe he would prescribe so much for him. We were out of there in a flash!!!