At my former job, I worked with the most insane, truly sociopathic person I've ever met. One day she was outside having a cigarette and commented to a coworker that she was concerned about a "scary guy" outside our plant and she was afraid that he was looking to steal cars or some bullshit. Turns out she was just talking about the guy (black) who loads the trucks. She didn't recognize this guy, who worked at our company for like 5 years (he was a contractor, but still) and he was "scary" because he was black. The shipping manager (big dude) just went off on her in front of all of us and called her a racist piece of shit to her face. It was amazing. My coworkers and I continued to refer to him as "scary guy" and he thought it was hilarious. Good on him for taking it in stride.