My son, Finley, is significantly bigger than a lot of kids his age. At just 5, he’s outgrowing many of his size 7 pants, his size 1 shoes are starting to get a little tight, and he weighs about half as much as I do. He doesn’t recognize his own strength, and I often have to remind him that he’s too big and too strong to be so rough… with me. I’ve had accidental bruises from playing with him and not so accidental bruises from the rare occasions when he's lashed out physically. Knowing his …