Does he get enough to eat? Does he seem to be hungry all the time? Some dogs need more to eat than other dogs and if yours is hyper he may be burning off the food quickly. You may try feeding him alone in a different room and feed him several times a day.
It's true that some dogs do have defective breeding that can cause some genetic personality problems. Do not play rough with this dog. Keep him calm and do not let him try to get you to play tug or anything that will get him into an aggressive mode. These dogs are terriers and have an instinct to want to fight. They can have aggressive personalities. It does take some special training to calm a dog like that down. If he is really genetically "off" it may be more difficult to deal with. But you can help him by encouraging calm, quiet behavior and not playing in a manner that will get him excited.
I would look for a behaviorist that will work with him on a reward system. Challenging him will just make the problem worse. |