DON'T BLAME THE DOG FOR THEIR TEMPERAMENT. I have always seen people asking the nature of the dog before they pet them. Do you know why there are certain breeds blame for being aggressive or ferocious. Where there is no reason to blame dogs for it. The owner is completely responsible for the behaviour of the dog. Aggressive Dog Breed.  Chow Chow Chow chow is non-sporting, medium sized dog according to AKC. The origing of Chow Chow is unknown but it's belived that they came from china or mangolia. They are often use as guarding or herding dogs. Chow chow are assertive and aggressive and need very strong guidance and training. It's not recommended if you are first time dog owner. Doberman Pinscher They are very intelligent, strong and protective against their owners. And go well kids if you mix up with them. They are medium sized dogs originated from Germany and the man name Karl Louis Doberman is creadited for devloping the dog. This m...