One example is that they are "bad associations". I can remember one witless owning a coffee shop (obviously, I will not mention names). Yet, other witlesses were against going there--the excuse is "There are worldly people there, swearing and such." As if they are not going to run into even worse swearing (and guns, dogs, and the like) at the doors. As if they were not going to run into exactly the same swearing while at the supermarket or at any other place where people gather.
They simply view worldly people as dirt, urine, poison, wicked, slaves of Satan, and bad associations. The only thing they feel it proper to do with worldly people is to preach to them, trying to get them to abandon a normal life and come into the cancer. Only then will they view such people as proper associations, and only if they are complying with all the rules and making progress into throwing away everything of sentimental value, quitting their jobs, and making it to all the boasting sessions and regular in studying (and, when the time comes, field circus).