Went out today and slipped and fell on some black ice. At first I thought it was regular ice, but then I noticed my wallet was gone.
Was that meant to be a joke about black people?
How does this surprise you? All that rap music is telling me that black folks are rich, but when I went there it was different, they stole everything I had. I expect people to behave a certain way and when they don't, I'm disappointed and scared.
I think that you just had a bad experience with this person. You can not base how you feel about the entire race, based on the interaction with a few. We should try not to be so harsh in our judgements of other people.