In your neighborhood? How often do you see him?
I am getting over pneumonia but should be up for walks middle/end of next week. If we see him I would have no problem talking to him with you.
The best thing to do if it is recurring is for someone to roll video then bring it to the PD in town and see what they say.
I carry pepper spray but really would only use it if there was a true threat. With the dog being a smaller breed , I think it would look bad to spray him to keep you GSD safe
Your life has to pretty much be in danger in this state for you to so much as push someone. The law is not on your side for self defense unless life and limb was at risk. One of my pet peeves with this place :/