I have a friend on the school board that I know would want to hear about this if it's true. If anyone knows the name of a teacher, please PM me.
I personally question if this isn't something the kids are coming up with on their own but it seems to be a recurring issue.
Hopefully no professional educator would put a minority child in this kind of situation. If the allegation is strong enough to post here, it's strong enough to take to the school board.