I have a 9 month old vizsla, and we just recently started letting him roam the house. The only problem we've had so far, is that he won't stop begging. I could start eating a small cracker for about 5 minutes, and he would just sit there staring at me for the next hour. Sometimes he starts licking me and my food, with no regard for me. It's not a food issue, as we feed him 2+ times a day. Is there any way to train him to stop?