Dog growls--is it talking, or aggression?
	
	
		Our 2 year old, 12 lb. terrier mixed breed is a talker. Barks, yips to come inside, or when he wants our attention. We are concerned because sometimes he growls at us. Mostly me, or my 15 yo son. But occasionally others, husband and 3 young adult men. It is usually if he is sleeping and you disturb him, or if he is resting and you start to pet him.it is never about food. If he is near my husband and I just "look" at him and he senses I might come pet him he may growl. It is usually a low growl and he always looks sheepish when scolded. He tried to mount a male dog at the dog park recently and he growls and lunges at guests in our home and we have to put him outside. He is not neutered because we were told it could change his personality. Will neutering him help this behavior?