[poohbearsmom]

No, this has never happened in my household. We have always let the last dog 'grow up' and learn a reasonable amount of obedience before adding a pup.
We allow the dogs to socialize, and always keep a vigilent watch on behavior, so that we can manage them properly. By this I don't mean to interfere with the way they work out their pecking order... It's easy for a big dog to injure a pup inadvertently, and so on....

It's always a good idea to limit the pup's time with the older dog(s) in a household, as you want the pup to bond to you moreso than them. In order to do this, I think it's important to be aware that you need to be AT LEAST as fun as the other dog in the household, which takes up more of your time, and sometimes some imagination.

Who corrected the aussie? Your husband, or his owner?