Exactly.
Gak! Gak! Gak!
Not sure if I would try it with a Pit Bull though. :)
Also helps to have their feet off the ground...
I don’t believe in hitting dogs. Have trained many big dogs and never had a problem except when a dog is ill and in pain.
Most states have a one bite law. A dog is allowed one bite and after that the owner is liable big time.
That is how you stop any attacking dog.
It is not, however, what I would do in this situation.
Something has clearly changed in the dog.
That needs to be discovered and addressed.
I would bet money on thyroid.
ALL Dobes are prone to hypothyroidism.
Blues and fawns, doubly so.