Share a personal experience with unruly and dangerous neighbors and express the belief that poor behavior is not limited to any particular class or geographical area.
I had several scary neighbors just like this on Country Club Lane in Wallingford, Nether Providence Township, Pennsylvania.  Guy across the street literally stopped my vehicle in the middle of the road, all cooked on some narcotics, and asked me to fight him in the middle of the street.  Guy across the other street tried to run over my children.  Lady next door, an attorney, used to roll down her window while driving by my wife who was weeding flowerbeds or some such yard care, and yell across her kids at my wife, "Go Back To Guatemala."  Front of her own kids.  Guy down the street killed his wife and himself, probably because his 10 year old kid was out at 1 am egging peoples houses and his 17 year old kid was having parties every night and the guests would leave the party at 2 am and throw trash  bags of empty beer cans in everyone's yard.  It doesn't matter how ritzy it looks, if trash lives there, they act like trash.  And they elect trash quite often as their local gubmint.