You should check out the thread Black and White Cats under Cat Breeds since tux kitties and their behavior has been discussed there. My cat is not a tux but her black/white markings are 50/50 and she has some of those characteristics like really hating our vet! Tuxluvr has posted about her female tux kitty and it sounds like she fits the stereotype.
You should also check out todays Cat of the Day Peeky, she is a tux that sounds like she fits your description too!