Hi, I was directed here by Miakoda.... she told me you guys could probably help. My daughter brought home a Blue Heeler that someone dumped at her boyfriends house. The neighbor started beating it, and she brought it home. We've had it about 2 weeks. Last night, she was playing with my daughters Lab (they had taken the Lab over to b/f house, so the dogs were friends), and Lucy (Blue Heeler) starts snapping at Zoe (Lab). Then they would play and be fine, then argue again. Lucy then starts snapping at my Shih Tzu, to the point I had to let him out of the fence. Later, I was swapping dogs out, and Lucy tries to get inside. My daughter pops him on the nose, and yells NO at her. The dog snaps at my daughter... this is not ok with me, as I have a pitbull, and won't put up with HA. Are Blue Heelers just snappy dogs, is this normal behavior that I don't need to freak out about, or is this dog showing signs of HA? I know nothing about this breed, and Miakoda said you guys could probably help me.... thanks!