Required reading for any academic is Philip Roth’s “The Human Stain.” In the first few pages an older, tenured professor is “forced to retire.”
There were two students who never were present when he called roll. Even after roll when they would technically just be “late,” they weren’t there. After weeks of this, he called their names one day, found them to be absent still ever yet, and said to the rest of the class—direct quote:
“Does anyone know these people? Do they exist, or are they spooks?”
The truant students, who again this professor had NEVER MET in part as they had NEVER BEEN TO CLASS, happened to be black.
So the professor subsequently was labeled a racist, and fired.