i am not a dog guru - yet but.....

I would imagine your dog felt the tension/fear/anxiety in ur body as the SBT approached, therefore a growl of protection ensued. I doubt it was a possessive 'gerroff my ball'. Although, keep an eye on him for a repeat performance - then maybe address it then.

As for the fight - welllllllllllllllllllll

Report the assault to the police, a provoked slap across the face can result in being requested to show-up at the police station and cautioned - minimum. Unprovoked attacks may well be reffered to the CPS for their judgement on whether the case should go to court.

I dont know much about the powers Dog Wardens have to be honest, in fact, i have never seen a dog warden anywhere ever - wouldn't have the first clue of how to contact one either - maybe yell.com

L x