Love thy neighbor. Those who are neighborly have a good number of mutual friendships, and the community as a whole is better off for them. Perhaps these individuals, in actuality, live in college dorm rooms, parents' basements, dingy apartments, or other such facilities devoid of actual, physical neighbors. Like, you know, the ones who come over to ask to "borrow" a cup of sugar or to use your lawnmower? Those worthless freeloaders, I swear... Oh, never mind.