Well, I had never met more unwell people in my entire life.
They were into vitamins, and selling all sorts of health-related items.
What we see as spam today in our inbox, seem to be the same kind of things the Dubs would push throughout the congregation.
Vitamins were the biggie, and health related books and pamplets.
They could tell you what was wrong with you by consulting this book/s.
Hogwash