Simply put, it looks like I'm going to have to rehome APOLLO(almost 4 year old GSD)It is breaking my heart and I have not stopped crying. He has now gone after and started a fight or attacked almost every dog in the house. keep in mind that almost every Attack resulted in me being injured--all dogs were fine. I don't know how many more injuries my hands can take. I was ok with crating and rotating him and Midnite(older male gsd) and Batman(grethound/husky mix) but now I am out of room for rotation. About 3 weeks ago we were sleeping and out of the blue he went for my older golden. I have no clue why, all I know was I was half asleep and furniture was flying. He had him by his neck and was shaking him. I did not get injured that time and not even a scratch on the golden which I can't understand with the grip he had. He has since not been allowed near the golden(still able to manage the crate and rotate fairly)Yesterday he nailed Robyn(female GSD). They are best buds and I never saw that coming. They were playing, she plays rough and I seen his face change. Robyn can handle her own but not this time. APOLLO is not big, 70 pounds at the most, but his whole body becomes super tight and every muscle tightens up. He flipped her, she yelped and he once again went for her neck. I couldn't get him to let go. When I did I lost him and he went at her again--3 times. The last time she was trying to fight back but my hand was there and that was what was getting bit. I told her no bite and she released. I finally freed her. My hand is pretty messed up. About 8 puncture wounds and swollen. I am on antibiotics. Once again, not a mark on Robyn. I'm not sure how that is even possible the way he had her. So he is pretty much in the crate at all times and goes out only when no dogs are anywhere near him. I called the local GSD club but haven't heard back. He can not be around other dogs and I would say no cats either(just in case) he is the perfect dog on his own. He has to go somewhere with someone who understands this and doesnt think they can bring him around dogs. I'm thinking this is not going to be easy. It's just heartbreaking, but it's to the point I have to protect the other dogs.