Hello Mr. Koerner,
I bought your book during Christmas time, a few months after I got my dog from a well known game bred apbt kennel. The reason I am writing is because I seem to have gotten a human aggressive pitbull. I bought him when he was 5 months sight unseen over the internet and he was the last of the litter ( whether or not the breeder new is something that is irrelevant at this point). He has attacked my family on various occassions, with a determination I have never seen before. The dog however, is wonderful and I believe he is game however he has that HA flaw. I attribute it to his insecurity around strange people and new situations. My question to you and I probably have many is how to proceed with this matter. I care deeply for the animal and have provided much socialization with the dog and my family and we have made great progress, but I know that I can never leave him alone with them ever again, since my family doesn't have the same amount of dog psychology awareness necessary to approach a dog so insecure as him. I contacted the breeder to get a replacement dog with the option of me keeping the dog (since I have grown attached to him and I will never give up on him) and he has asked for a video of the dog . That is where I stand now. Before I go any further with this matter I decided to ask for your expert advice and I would rather remain anonymous so as to not hurt the breeders and dogs reputation. I hope you understand. My question to you is should I breed this dog in the future from the same line and ask the breeder instead for a discount on a future more stable pup given the fact that I wasn't expecting such a liability? I was thinking of preserving this line and discovering what I have, as you mentioned people should do in your book. However, there is a good chance that the offspring will be HA as well, right? What route do you suggest I take? I can't help but think I was scammed, but I also read in your book that even from the best litters sometimes things go wrong and a recessive gene pops up. I've read that some dogman where tolerant of HA. Should I feel grateful of what I got, after all the dog is bred beautifully on paper? Perhaps I will have to wait and see what he produces and then I will no for sure? And even if his pups come out O.K there is still a chance that if I breed sister/ brother or another combination the HA gene might pop up again, right?
Thank you


					
					
					
					
				
  Also, if you didn't receive the puppy until five months of age, there's no reason to immediately conclude that his HA behavior is a genetic flaw. There are any number of things his breeder or former owner could've done to sponsor such a temperament in a young dog, and then switching homes halfway through his puppy hood could've simply cemented his already insecure grasp of his environment.  Unless his breeder has produced other HA dogs, and other people interbreeding his family have produced HA dogs with a regularity, I wouldn't worry too much about him producing maneaters just yet.