Who was in this story, I forget(has to do with racist white people, and its

[Okemos Head Chieftan]

not politcal)? All i remember is the person is a woman and when she was little she and her father went to a gas station. And the gas attendant decided to help the white people first instead of them. And when her father wanted to leave and find another gas station, the white gas attendant raised a shotgun to his head and told him to stay or he will shoot.
I am not using the answer for political reasons and i just can't rememeber who it is. It is bugging me. And i am sure it is not shirley sherrod