The problem with Joey, and I hate to use that word, is that he has both ADHD which means that he is full of energy and finds it difficult to focus and dyslexia, which makes him frustrated.  The result is an often angry little bit whose first impulses are often negative, who has to be directed and corrected and told off far too often and who therefore gets very frustrated.  If it was just one or the other, it would be OK.  Having both makes it a real challenge.