Long story short(ish), my sister's dog gets mad at her when she disciplines her in front of me while we're in the truck. My sister allows her free reign of the cab while we drive. Dangerous, yeah, but my sister is stubborn. Plus, that's besides the point. Anyway, her dog, a 1+ year pit bull, chases the cars that pass us by. She has also started to chase the windshield wipers. When my sister gets onto her (giving "verbal commands" of get in the back, no, and other such nonsense) when it's just the two of them, Angel listens. If I am riding along, she whines sharply or barks back at my sister, curl her lips slightly, and ram her nose into my sister's cheek. That's only with me in there. What does this mean (other than obvious misbehavior and a dog that desperately needs a trainer)?