When I was born, my family had a boxer puppy named Bandit, and I loved him so much. Boxer's are great dogs, and they are very loyal and loving. Has your dog ever ran away before, and came back? I know that my old boxer, ran away to explore a few times, and me and my family were worried as well, but he would always come back home. I believe your dog will come back home soon, and I pray for his safety and health as well. May God watch over your boxer and bring him home soon.
