i am beware if the barking dog,  

I am always wary of barking dogs because by barking they are talking to you and others warning you of their presence and telling you not to violate their territory!
Mt dog is an excellent house dog and deterrent to unwanted callers. I am sure any body with bad intentions in our neighbourhood would know they would have to get past the dog to get into the house and this makes me and my family feel more secure.