I was wondering if you guys could help me. Nashville is now comfortable with my family, and most of the daycare kids, but she hates my youngest niece. When we first got Nash she would growl and cower away from my niece. My niece has never done anything to her, but she is very loud, and I know Nash (at the time) couldn't handle how loud and annoying she was. I kept her at a distance and wouldn't let my niece get within an arms length unless Nash approached her. Yesterday, Nash was laying on my floor and my niece walked in and as she walked towards me, quietly, Nash nipped(no bite mark or redness) her in the butt. My niece is now terrified of her and will cry and run away. Nash now will go after my niece anytime she sees her. Is Nash getting a boost of confidence from my niece being scared, or "weak"? It might sound stupid but She stands taller and more confident when she sees my niece get scared. My roomie was walking her the other day and told me when she got home that Nash went after a pit bull that charged her. She was walking and the pit was off leash and ran up to her the owner screamed "She's friendly" But as soon as the dog got in her face and she realized she couldn't get away she started biting. Not enough to draw blood or leave a mark, like a warning bite. The guy got all mad, and went to grab his dog, and as the dogs back was turned Nash wanted to follow and sniff the other dog. Another issue the roomie is having is that Nash charges the doors when people come in the room or house. If you don't correct her in time (Tell her to quiet down, or stand in front of her.) She will nip at whoever wanted in. But this only happens if she gets startled awake or startled in general. Nashville is not my dog. She is my roommates but I do help her take care of her, and I've told my roomie about Nash possibly being a shy dog. But she doesn't agree since if she is in her "territory" she has no problem greeting people, especially women. Is it possible she just has no confidence? I'm praying you guys can help because my roommate said if she doesn't figure out what to do she is taking her to the shelter or rehoming her. Any advice about boosting her confidence or training to try is appreciated.