Call and report it to animal control, if your dog didn't do any bite it shouldn't be blamed on the incident because of its breed. Even though a person was. To bitten the attack or bite should be reported in case there is a next time.
You may want to consider a muzzle if this person is going to be accusing your dog of biting other dogs. If there are any witnesses to what happened it would be helpful, also take pictures of the injury. Is the dog okay from the bite?
Is it a pinch or does the dog need vet care?
If, as you say, your dog didn t do anything then you have nothing to worry about. You can always try to get the owner of the GSD to pay for your dogs vet bills but failing that, if there s no injury to the other dog then the owner can t hold anything against you. They re clearly very inexperienced.
Dogs don t see other dogs as their breed and it s very naive for an owner to think that.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.