Why some people use bad words?

I know three marshal arts. I've beaten larger guys than you. Your too gangly and slow. I can out manuver, and use all your energy against you. A mere twist of my body and I will break your arm. While you wince in pain. I will side blow your knee, and break that too. a round house to your now 3'2" hight head... and game over. Should take a couple years for you to recover fully, if ever. LOL