you hurt your knees at school very bad when you return at home your mom Is was worry for you so he take you to the hospital you was in the bed of The hospital wait someone take Care of your knees a kind doctor name Kevin come to you with a smile "Oh so what We Got here? You hurt your knees mh.. Not problem Im here for help you" he look you with a kind face and start rub your knees and try to see what Happened To your knees