I immediately thought of this.I would advise that you stay away from them.
Just try to park and drive in such a way that you're less likely to come into situations where you'd need them. Some folks park just about anywhere and drive for too long near the wrong people.
Location only matters to me when it comes to understanding how people in an area drives. Overall I never let my guard down and in the city, if no cops are around, sometimes you have to throw laws out the window to get around the idiots... I don`t advise that for everyone...I immediately thought of this.
Defensive driving is key. And when I say defensive it doesn't mean some extra armor for scraping once in a while, its avoiding the scrapes altogether.
I think it may also depend if you live in the city or not. Narrow streets may make you more prone to those situations.