Signs of dominant behavior include blocking people’s/dog’s path; barging through doors; demanding attention; protecting of sleep area; stopping eating when approached; mounting legs or other dogs; approaching another dog from the side and putting his head on the other dogs back/shoulder; inserting himself between you and another person or dog (e.g. when you and your significant other hug); and lunging at people. Any one item may not turn into a big deal, but should be monitored. If you are comfortable, you should discourage dominant behavior with training and diversions so your dog will look to you for direction.