Quote Originally Posted by NbyNW View Post

Ultimately, his good behavior is his owner's responsibility, but as long as you need to be going into that space, it might be helpful to talk about how you can get along with the dog. Maybe invite her to bring him to your part of the office for a visit, so he can get to know you in a different setting.
I agree, and the dog owner must take control the minute that dog starts to growl. That behavior has to be addressed the instant he acts out in that manner. She has to be the 'Pack Leader', and take control of the situation so that the dog knows that he doesn't have to be the protector of his owner - the pack leader has that role.

Once the dog knows that it is not his job to protect because his owner has it under control he will be able to let his guard down so to speak and allow himself to relax. Dog's know when their 'pack leader' is vulnerable and will protect when it's absolutely necessary.