Mike....... picture your best friend's elderly busybody spinster aunt sitting by the window all day watching the traffic go down the street. That's the best definition of a American Neighborhood Watch I can give you. In some more troubled inner city neighborhoods the local minister might get some of the parents to carry walkie-talkies and patrol the streets til say midnight. No vigilantes.
Unless you wander in to my neighborhood after dark. We use RPG's on the cars, claymores for groups of 5 or more and my famous 3 .45s inside the ten ring for those who survive.
They never comeback, wonder why