Anybody ever have a racist teacher?

I had one teacher who kept telling us about how she used to say the word (n-word) and she'd talk about it and actually say the word when talking about it and then seem surprised when we were all uncomfortable. And then she told us stories about how a certain side of the family was coming over and they were Japanese, and she said she asked when the (Japanese slur) were coming over. And she told us she got in trouble for saying that, as if we'd be surprised that people were offended by that.
And she continued to say a variety of ignorant things like that. You could just call it anti-political-correctness, but honestly, she just seemed poorly adjusted to changing demographics and norms. I don't think she'd actively mistreat a person of colour, but I could see her being generally insensitive to issues that affect people of colour in ways she doesn't understand.