We have a 8 year old female Doberman, who is a sweet nice dog. She knows all the basic commands and done some agility training. She is great with people and dogs ( went to multiple day cares, dog parks and dog beaches). We’ve never had any problems with her, she accepted our baby greately and became his best friend. The only thing I can remember is that for some reason she doesn’t like small Neighbor’s dog, barks at her and tried to chase her once. She also had an experience living with other dog earlier in life. We just got our new Doberman puppy and brought her home. Our dog does not shows any signs of aggression, however acting a little weird. After brief smelling the puppy she avoids any contact with him, tries to stay in a distance and overall looks really nervous and not too thrilled. It makes me really worried what could happened next and could she possibly attack the puppy, what can we do to prevent that? Overall what would be the best way to help them get along? Any advice would be really appreciated. Thank you!