some driver do not know what a polite

Yesterday afternoon, I took my son from school by motorcycle, when we drove near Dongjiang bridge,suddenly, a black car crashed to us, I changed my direction quickly, after that, I was very angry, I shouted to the driver, "how do you drive the car, It's crazy." the driver did not answer me then drove away." what a stupid!" some of the driver do not know polite.It usually let other people known what quality they have.