Scientology uses semantic stopsigns:
http://www.garloff.de/kurt/sekten/mind1.html
Loaded Language is a term coined by Dr. Robert Jay Lifton, a psychiatrist who did extensive studies on the thought reform techniques used by the communists on Chinese prisoners. Of all the cults in existence today, Scientology has one of the most complex systems of loaded language. If an outsider were to hear two Scientologists conversing, they probably wouldn't be able to understand what was being said. Loaded language is words or catch phrases that short-circuits a person's ability to think. For instance, all information that is opposed to Scientology, such as what I am writing here, is labelled by Scientologists as "entheta" (enturbulated theta - "enturbulated" meaning chaotic, confused and "theta" being the Scientology term for spirit). Thus, if a Scientologist is confronted with some information that opposes Scientology, the word "entheta" immediately comes into his mind and he/she will not examine the information and think critically about it because the word "entheta" has short-circuited the person's ability to do so. This is just one example, of many, many Scientology terms.
The next step is TR-0 "bullbaiting" where the partner says things to the indoctrinee to get them to react. This is called finding a person's "buttons". When the person does react, he is told "flunk" and what he did to flunk and then the phrase that got him to react is repeated until the person no longer reacts. This is very effective as a behavior control method to get the person to blank out when someone starts saying negative things about Scientology.
Hm, this actually sounds like it could be useful...
I wonder if it would be valuable to get partway in to Scientology, then quit, just to observe the power of peer pressure, groupthink, and whatnot.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.