My ex accused me of "muddying his bloodline" when he got radicalized, because I didn't pop out Aryan children. They came out assorted but all were "white", certainly by local standards (how creepy it feels typing that, ick) but by the nonsense he'd absorbed on Stormfront, he (retroactively) expected me to have popped out a string of wee blonde angels.
Other than that, I was the beneficiary of some crazy racism once, got AAA to come tow my car in 4 minutes flat once when I gave the address and the dude thought he was rescuing me from a warzone, because it was in a black neighborhood (we don't have the sharp geographic divisions seen up north but do have blocks and areas that are economically distinct and historically black or white). Usual time for AAA was more like 4 hours.
Worst to me was my scumbag mind's determination to see a man as rough and violent because of his looks, a guy who became a good friend and isn't at all like that, just because his looks are like an actor playing an abusive black dad. Seeing this in myself (I didn't lay it on him, but my own mind got it so wrong) was unsettling.