It is not uncommon for people to bring home a second dog, and often do not know how to help facilitate a positive introduction. This video does an excellent of of demonstrating how to do that in a neutral place. It also talks about acclimating a newly adopted pet upon your first arrival home.
Are you REALLY using positive reinforcement in your dog training?
You may think you are using positive reinforcement, but if your dog or other pet is not motivated to do more of the behavior, then you may not be reinforcing the behavior.
