@purple sky: I found your comments very interesting. I am particularly curious as to which color combinations are banned in your schools, because I have never heard of anything like that. Would you please give us a couple of examples?
@Jo Clear: I suspect that your cat became uncomfortable because of the build-up of static electricity in her fur from all of the petting. Nipping you was her way of letting you know that she had had too much of a good thing.
I am really glad that I have never experienced this. Incredible!