The knockout

I was watching my brothers while my parents were gone for the day. Jim and Jerry were teenagers and Fred was still a little guy. Jim and Jerry had been at each other all day and finally were actually fist fighting. I told them to stop it, but they were really mad at each other and just kept at it. I decided to make them stop and stepped in between them (very dumb!). Next thing I know Jim is patting my face and saying wake up, wake up. I am so sorry, don't tell dad. He kept saying that over and over. Apparently I stepped in just as he was throwing a punch and he knocked me out. Of course I never told, but they were angels the rest of the day.