My 4 year old dog is kind of aggressive towards animals or people she doesnt know and isnt around often. I have done research, but i would like to know from experienced owners how an aussie pup would react to my dog? I know Bittsy wont like the puppy, but will eventually- some odd weeks or months later- get used to it. My qustion is, would an aussie be aggressive back, or be able to stay relatively calm long enough for things to settle? how should i handle my dogs aggresiveness?