I know a young couple who, a few years ago, lived in a housing co-op, full of duplexes, that was located in a rather pleasant spot on the edge of a mid-sized town.  They have since moved on, but they shared with us how, before they moved, there was a changeover taking place amongst the other residents of the co-op.  A number of new families had moved in and these new residents seemed to be quite unfriendly, even hostile, towards them.  Their children, in similar fashion, treated this couple’s seven-year-old badly out on the playground.  Besides being unfriendly, most of