It is rude to be racist towards others.
Clark is a cashier at a convenience store who works in a diverse area.
Clark wants to keep his store safe and crime free.
Clarks gives his customers the benefit of the doubt and only reacts if security camera show sometihng obvious.
Clark follows around the black customers and often wrongfully accuses them of taking things without paying.
The store gains a lot of repeat customers and Clark makes a lot of money.
Clark's shop has a bad reputation on yelp, and he eventually has to close down.