[Mr Downtown]

Especially in areas with gang problems and roaming miscreants, it's vital to distinguish public space from private space, and don't mess with Mister In-Between. This was one huge problem with Chicago's highrise housing projects: there were all kinds of semipublic spaces that no one considered his responsibility to patrol or maintain. Unfortunately, that mistake has been repeated in some of the replacement housing in order to achieve high densities within the Chicago block pattern.