" the Jim Crow South, often the plates off which black people had eaten were broken so that they could not be used again. Baseball great Hank Aaron describes this common practice in his autobiography, noting, “If dogs had eaten off those plates, they’d have washed them.”21 So the US South had convoluted and bizarre practices regarding food: blacks could cook and serve food for whites, but they were thought to contaminate the plates they themselves used. "

― Martha C. Nussbaum , The Monarchy of Fear: A Philosopher Looks at Our Political Crisis