I think there are distinct traits that are NOT mutually inclusive by default.. tameness, docility, non-aggression, and halter leadable.. just beacuse an animal has one or two of the traits doesn't mean he has the others, and this is particularly true of bulls... Just because he comes up to you to get scratched in no way means he's docile.
My homeraised bull is now 3 years old and has never snorted, pawed, or looked at me wrong.. he doesn't fear me, he has no reason to, and I think that can work both ways depending on the temperament of the animal.. an aggressive animal with no fear of you is bad news, while a docile one that doesn't fear you is alright.
I've had lots of pet cows that are perfectly docile, but there's just something about them that I don't quite trust at calving time.. they were never aggressive to me, but there was *something* there.. meanwhile others I don't feel my hair standing up around them
BrightRaven, you have to start running yours through the chute daily to get some treats, at least try and undo some of her bad experiences... If you can, make it so her feed is on one side of it and water on the other, and she has to go down it back and forth a few time a day.