warning: racist, bigoted gross generalization to follow.
I have seen several American black females lose their cool completely and get ready to be violent or become violent. It was a surprise to see at the time of course.
I saw one nurses aide out of 2 get violent; I saw 2 sisters go nuts out of the 4 sisters I know, each on separate occasions. These exciting events took place within about 4 years in S. Florida.
From my small statistical sample I concluded that these females have some self-control issues that I haven't noticed in other females before.
That is of course just "for what it's worth" and may be a worthless comment offensive to some people.
That will be the last time he is rude to young black female bus riders!