it was after some hugely secret affair ( taking place in an underground location and only hinted at even to other fellow secret society members ) that you by accident went to some campus bar , and there , other people not knowing of your affiliation , would walk amidst you , to be noticed , registered , completely examined without their knowledge , studied because they were the kind of people who gravitated to the center of action and did not contemplate the possibility that they were the only ones who did not know every other person in the bar .