Of course you are right regarding the variation of dogs within a breed. For the most part there will be predictable behavior among dogs of any breed but there are significant influences from training, environment, function, and individual preferences which will cause behaviors to change in individuals. I think the info presented by the article is specific to the population of dogs in the survey which may fairly well represent the normal traits for dogs of x breed in x environment. Are there any implied liabilities regarding the signage on one's property in NV?