I have heard that having them fixed does calm them down a bit but im not 100% on that one so I would wait for a more experienced member to answer that question.
When she barks or snarls you could try spraying her with water from a spray bottle.
She wont like it and will learn that everytime she acts like this something that she dosnt like will happen.
The water wont hurt her and your wife can do it without getting close enough to be bitten, Good luck.
__________________  Rachael & Poppy |