The Nerve! We have some neighbors whose dogs badly attacked another dog (who was walking quietly on leash....) and generally kept escaping and running down other dogs, bikers etc.
I was at a neighborhood event and the woman told me--everyone on my street knows I am a trainer with 4 dogs---that a guy on a bicycle KICKED her dog, and she was outraged. She expected me to sympathize...but I said "If he chased me on wheels or on foot, I'd kick him too."
There are responsible dog owners and out to lunch dog owners...you have a case of the 2nd and have every right to be as rude and condescending as you like as long as her dog is making your passage on a public thoroughfare dangerous.
Discipline is remembering what you want.