Sheldon is a great dog if you want someone to protect you. He is partial to females that can live with a male also. He is slow to warm up to strangers so you must be patient. As long as he is with me, he will protect me. I know away from his current environment and placed in a new one that he would become your best friend too. He is a purebred Lhasa and I have all his papers and his parents. He is neutered. He weighs about 18 pounds.