Duke, You have to win this war. This is behavioral stuff and if the dog is this difficult to manage at 8 mos. and you give in you'll have a mess, like my Pinky, on your hands.
Hey. What is he--45 lbs. now?
Maybe he is wigging out from pain. Give him some Benadryl, wait, then sit on his back if you have too! Did the vet give you anything for pain? Give him an aspirin.
I AM NOT A VET DON"T FOLLOW MY ADVICE UNLESS YOU CHECK IT OUT FIRST YADA YADA,ANybody else? Please.
Let us know how it goes. Be interesting to see a video.