We have an older AussieDoodle, probably around 11 years old. We adopted him 10 years ago this October. In March we lost our Webster who was 12 1/2 yrs old. They were the best buds from the beginning. Fitz, the rescue we have now, has always been a fearful dog. We never know exactly how he will react to new dogs. He can be friendly with one and bark aggressively at another. We have placed a deposit on a multi-gen puppy. Not sure whether we will get one in the litter due late Sept. or the next, depending on size of the first litter. I have searched but haven't found very much information on how to introduce the two as well as maintaining a good rapport those first few weeks.