It is not aggression, it is just rough play. And at his age not even likely that it is hormones.
Do you plan to have him neutered?
As for the biting and him being spoiled. There is good spoiled and bad spoiled. If you hold him a lot andbuy him lots of toys, that is good spoiled. If you do not correct bad behavior, that is bad spoiled, and just as with children, it will only get worse.
It is your job as the pack leader, to show him what is right and what is wrong. If you refuse to discipline bad behavior because you think it is mean, then you are in for a world of trouble.
It sounds to me like the dog is ruling the house. You need to learn to be a good pack leader and take back control. A dog will not bite the pack leader.
Welcome to cesarmilaninc.com - Search Results for "cesarmilaninc.com"