My Dalmatian hated to wear buster collars... He got good at destroying them... 17 of them...
The vet would even duct tape two of them together and he got to where he could destroy them in less than a day... After that I stopped putting them on him...
He would intentionally bump into doorways and walls in the hallway to break them (Reminded me of a drunk sailer walking and bumping into everything)...
At 60 - 65 lbs there was enough force to break them even doubled up...