Racism is something a lot of non-racists are claimed to fall into.
I had a racist piano teacher who was black teaching me piano. Just about everything I'd say, he'd try to turn into me insulting him, which I was not. For example, "I got the hang of this song but its not really my favorite ". He would turn that into "Yeah, it's one of those black songs, huh."
Or, he'd just make stuff up at one point, Id say "I actually didn't get a chance to practice tuesday, but I'm confident I have the hang of this." and he'd say "Just because I'm black you don't have to call me MAN, calling me MAN is like saying we all talk like that, and we dont."
At one point, it just got rediculous, I said listen, I don't know why you want me to be racist when I am not, but I cannot deal with it every lesson. You often speak out against white people rudely, but I don't say anything because I clearly cannot be offended so easily. It's when you tell everyone I am a racist, and I am treating you differently because you are black, is when I actually get offended.
I really hate when I am labeled a racist, when it's obvious I am far from one. Some of my best friends are black, some others are white. And I know there are several people who think that sentance would be racist.