When my son was about three we took him out to a restaurant where kids were welcome. He sat in a high chair with a tray, and we put things on it for him to eat. I can't remember exactly what it was that he was so intent on, but I do remember him chasing a piece of food around the tray with his fork, trying — and failing — to spear it. "I got it, I got it, I got it!" he chanted. Then, almost without taking a breath — "I need help!"