We have a guy in town, on a corner, who lets his pit-like dogs wander unrestrained on his front lawn. We drive our dog now for walks & spouse carries
I think bear spray is a good idea. We always carry pepper spray
Had a family who let their pitbull run loose in the neighborhood. I live between two schools.
Called pound and they picked it up. Two days later it killed a cat in my front yard.
Called pound again and they put me off, so I fixed up some anti-freeze hotdogs that night and left them out for the dog.
It died two days later. Problem solved.