@ComicDom1:
It is a known fact that 'nurture' counts for at least as much if not more of personality development than 'nature' in humans. This is bound to be true for dogs as well.
I think it is convenient for people to say "oh this dog was probably poorly bred and thus has bad temperament." As opposed to taking responsibility for their part in the dog's problems. Once a behavior has become 'set' in a dog's mind, it can be a lot of work to overcome it. Some people choose to look the other way or blame breeding instead of properly dealing with the situation.
To be fair to the animal all medical issues must be fully explored and off the table, and then a hard look must be taken at the 'nurture' part of the equation, before throwing up one's hands and blaming 'nature.'
When it comes to rescue dogs, since we have so little information about where problems stem from that much care, and expertise must be applied to properly manage their situations.
Randa
I don't think that it is a "known fact" how much behavior is attributable to nuture vs. nature in any species. That is still a hotly debated subject in the world of psychology, and animal behavior.
I didn't intend to imply that bad behavior is exclusively the fault of bad breeding, I would NEVER suggest such a thing. But I can confidently say there are SOME dogs out there, where the breeders and owners have done everything right, and the dog still just has a challenging temperament. It isn't anybody's fault…it just happens sometimes....just like people with challenging temperament.
But I certainly agree, that regardless of why or how, people need to get qualified, experienced help when they find that they have a challenging dog on their hands. Being a trainer by profession, it wouldn't make any sense for me to say 'well, the dog has a bad temperament, nothing can be done'...and I never meant to come across as if that would be acceptable.