Me and my partner have a huge problem. My oldest dog which is a male and his behavior is getting worst. He barks when he cant get any food. He snaps at us when we try to correct him. I really dont know what to do. He is a great dog but he is getting aggressive. I just want him to stop snapping at us when we try to correct him. It is causing a strain on our relationship. I really could use some help to correct his behavior before its gets out of hand.