This behavior sounds confusing to me. I don't know why an otherwise mild mannered dog would bite her owners, unless it's re-directed fear-based aggression. If she were just nipping you, I'd say it's because she's the boss. If she were biting a bunch of people, I'd say it was possibly some kind of physical problem.
I guess if it's fear-based aggression, something else scary like pennies in a can might key her up more.
What did the trainer say was driving her behavior? Also, how old is she?
This is just general advice, but maybe you can try 'Nothing In Life Is Free'. If you teach her to Sit/Down/Stay, maybe you can put her in position when she starts to get agitated. When she's Stayed for a given period of time, she gets a nice treat (distract and reward).
Does she have chew toys?
__________________ If you love something, set it free. Unless it's an angry tiger. |