[YorkieMother]

I would suggest you slow down and relax a little that which you draw attention to and make a big deal of makes it more then it needs to be.
A growl is just talk that is all it is and turning off a grrr will most likely lead to biting that needs not to be.

IT is only speak and over reacting to it will make is worse ignore it.
Add the hubby to doing more with the dog and when the dog is doing something right then draw attention to that.
That which you pay attention to you get more of.... want grr pay attention to grr.... want calm pay attention to that.

JL