I would try walking him as well - if you don't already to so. Walking him will calm him; help you to bond; and the exercise will make him tired. Hopefully, too tired to be aggressive.
You can also google "Nothing in Life for Free or NILF". This would be a good way to get started establishing who is in charge in your home. I can't remember all the details offhand; but we used this with my dominant, male Westie.
He has to sit before his food is given; sit before he goes out the door; sit or down before he gets any treats . . . .it's a very polite way of reinforcing that you are in charge.
It helped us a lot. My cousin had a male Yorkie who was not neutered and he marked terribly in her house and became aggressive around 5 years old or so. I would check with the vet to see if it is too late and whether that would help with your marking and aggression issues.
Good Luck! You can work on these behaviors and see improvement. |