Hello fellow poodle breeder, looking for a little advice about poodle biting.

She normally very easy to handle but she can become very hostile sometime. She also don't like it when someone reach for the thing she is playing with or her food.

I read about how to train poodle to be more obedient but I'm having trouble doing so because not all family members are committed.

Any advice to help her with this problem? and any easy to remember rule my family can follow?

Thanks.