What is the funniest joke or joke you have ever heard?

I remember when I was a child, probably in junior high school. On my way to school, I was stopped by some gangsters. I used my quick wits and shouted at a strange uncle passing by. Uncle, someone bullied me, but the gangster was too arrogant to be afraid of adults. They beat me and my uncle. After the gangster left, my uncle beat me up again for the sake of himself.