When she turned and rammed him he was off balance and went down hard as her grip on his scruff kept him off balance. the pain wasnt bothering him. He struggled to stand and managed to kick her stomach even if only weakly, Her grip was tighter this time. He growled and shook his head side to side to loosen her grip but she just tightened it more. Finally he stopped struggling. He felt  the blood trickling from his torn neck. It was over. He didnt have the strength to break her hold. He went limp, giving up the last of his strength.