Associates

 Just because you call someone “brother” or “sister” or “neighbor” where you live does not make it so.  It is how you are with that person that makes the relationship, not geographic nearness, or fraternal titles.  If you have nothing much to do with this other person, except in the service of your pursuit of your own particular interests, then that person is neither  brother nor neighbor.  They are mere “associates,” as in a business of getting things done, your things, that is.