i actually just culled a doe today that would attack any buck i put her with (and really any other rabbit i turned her out into the yard with to get exercise,) but was otherwise a nice rabbit. personally i don't have the time or energy to deal with an aggressive doe, even if she is nice to me. if she won't breed at least somewhat easily, she goes to freezer camp. if nothing else, that personality trait could pass on to her children, and you don't want an entire line of tough breeders. there's plenty of other nice, easy to breed does out there.