Attacked by a German Shepherd

A German Shepherd dog rushed out from a house and attacked me when the owner who just came back left the gate open. I fell off my bike and have to ward off the attack by swinging my bare hands at the dog. The owner did not even come out to help me and this lasted for about 1 minutes. I managed to escape with bruises and cuts on my knee. There are abrasions on my chest when I knocked on my bike handle. I sprained my elbow and my knee as well. When it sensed that I was not an easy victim, the dog ran back in to the house. Then, when I was about to push my bike away it came out again. This time I was ready to face the vicious dog but it went back in when it saw my angry face! The owner quickly closed the gate and go inside the house. Did not even appologise! Damm bloody nitwit! What type of mentality is this? An attack dog can permanently maim a person or damage the victim internal organs. If you are such a negligent person, don’t ever think of owing a dog! I cannot imagine what will happen if the victim just now is not me but some kids from my neighborhood. Don’t ever be overconfident that your dog would never attack someone. If they do attack someone due to your negligence, you could be sued or jailed. I love dogs and I had 5 dogs when I was a kid. I always make sure that they don’t leave the house and put them on leash whenever there were visitors in my house. Now, my whole body ache and I hope that there are no other undetected injuries or else Peteformation would become Doggoneformation tomorrow! Anyway, I leave the case to the police for now.