Every rescued adult dog is unique. Each comes with her own life experiences that have molded her into the dog she is today. It is also these previous life experiences that can make your Chihuahua's transition to home life extremely easy or sprinkled with a few challenges. With those dogs that have some obstacles to overcome, time is a great healer — especially when the Chi owner is prepared for virtually anything and is willing to give the dog the time she needs to develop into a wonderful pet.