I really feel for your son. They can be very annoying but then, we just have to find a way to help them grow into a responsible adulthood..you didn't do anything wrong by telling him to go and do his homework. All the same, I thank God that the injury didn't go beyond that. It could really be painful. Thank you for rushing him to the nearby pharmacy. He will be fine with time. Just the scare will remain as they already stitched it. My kind regards to him and just calm down and keep caring for him.