re: Dog Help Advice Needed- Growling and Baring Teeth

If he keeps doing that, the dog will bite out of fear, only because that will be his natural instinct.

A growl is actually a good thing - it’s a warning. He can correct the warning with the tips I provided above but he needs to understand the basics of having a dog at 2 years of age. It’s essentially a teenager. And teenagers test their parents until discipline, structure and routine are implemented and become healthy habits.