This question is REALLY urgent. We got an 11week old Boston Terrier puppy Saturday. He loves people (follows us around, rests his head and goes to sleep on you, etc), however, today and yesterday he has begun to growl. He growled when my mother picked him up yesterday, when my brother picked him up today, and when I was playing with him and he stood on me, he growled then as well. We took him to the vet today, and discovered he has mange and a common parasite. The issue at hand - My folks are debating returning him tomorrow (Wednesday) afternoon. I am doing as much research on behavior training as possible, but wanted to know your opinions. Do you think that we got a 'lemon,' or is this something common that is fairly easy to correct? Are my folks right in their idea of returning him? As of now, the growling is as bad as it has gotten. He has NOT bitten anyone, and has only growled at us the three times. What would the proper training route be if keeping him is a good plan? Honestly, I'd hate to return the little guy because he is generally a very friendly, people dog.