attacked

Hello i have a question I have a 1 year old male Dobbie (who is not neutered) and him and I are very close and he’s behaving perfectly fine until today an accident happened he was playing with my friend everything was fine until I hear him cry he ran toward me and I kissed him and he started...

My 1 1/2 year old dog just attacked me, In the past I noticed he has been sensitive around his neck, but nothing recently. Tonight I was hugging him, something I have done often and he snapped biting me many times on the back of the head. Several puncture wounds. I am SO sad. He has been my...