Always walk through the door ahead of the pup. Also always make them wait for 30 seconds or so before it eats but after you put the food in the bowl. Don't let the pup sleep on your bed or get on your couch.
A dog needs to feel like they are protected by their "alpha dog leader" to be able to relax and enjoy life. If you don't make it clear to the dog that you're their leader in doggy-understood ways, then their natural tendency is to try to be your leader and protector, which caused them to lead a stressful life and be more aggressive.
In a one-dog home, it's not as important to do the simple dominance things because your dog will not be competing with other dogs for status, but the dog will be tense and uncomfortable out in public b/c they'll be needing to "protect" you.
Hello, Cesar Millan, is that you?
A dog needs to feel like they are protected by their "alpha dog leader" to be able to relax and enjoy life. If you don't make it clear to the dog that you're their leader in doggy-understood ways, then their natural tendency is to try to be your leader and protector, which caused them to lead a stressful life and be more aggressive.
In a one-dog home, it's not as important to do the simple dominance things because your dog will not be competing with other dogs for status, but the dog will be tense and uncomfortable out in public b/c they'll be needing to "protect" you.
Hello, Cesar Millan, is that you?