My neighbors are very friendly to my dog that is going to be one year old Sept. 23rd, 2010. They come over to visit him like 3 times a day and give him treats. But the only way they can give him a treat is by turning their back to him. My dog barks and runs away from them until they turn their back. Any idea why my dog does this and how can I get him to stop barking at them and to let them pet him?