I've posted this story over the years on many an Amway thread. My brother got recruited into it. A young engineer showed up and convinced my brother to join. My brother bought a "starter pack" of some kind and paid a membership fee. He was very excited about it until he went to one of their meetings. Amway met three times a week. The Witnesses met three times a week. Amway had three annual conventions. The Witnesses had three annual conventions. What put it over the top for him was the religious nature of the meetings and how similar they were to Witness meetings.
My brother is also a big believer in spiritism, the demons and what not, so he decided to quit Amway because he felt a "demonic presence" in the Amway meetings. More than likely it was a voice coming from the recesses of his mind trying to warn him that the Witnesses were just as goofy as the Amway people. He preferred to attribute the discomfort he felt to "the demons" and was able to continue with his life without having to reassess his life choices.