Where do you live that a vet would report a dog fight between two dogs? Here if it happens the vet takes of the dog or will even give meds over the counter no one is reported. Fights happen even to the best of us. Now if the dog bite a human then yes it would reported.
Sounds like this guy is underthe impression that it is all in how you raise your dogs. People need to understand that all APBT
have the ablitiy to be DA it is in their nature. Maybe that is how you need to educate him. Talk to him about DA and HA the differance between them and how to avoid altercations.