I went in to one of their (the church of scientology) "free" personality assessments whilst I was in Sydney on a 12 month backpacking expedition.
The gave me a questionnaire.  Basically asks you questions about your life.  You have to answer on a scale of 1 to 5.  Where 1 was completely agree, and 5 completely disagree with the question or statement.  I filled the questionnaire as positively as possible.  
I was lead to a very plush room, and left there for a while.  Finally my "rep" came back and took me in a small room to "discuss" my results.  He said that I was depressed ( 

 ) and lacking direction in life.  
I mean.  Here I am in Sydney backpacking around Oz, depressed and lacking direction...   

  Having been to manly beach that day and had a great time, it was amazing to discover that I was actually depressed all the time...
So I told the guy that I wasn't depressed.  And he waffled on with himself.  So I told him that I am not interested because I know that I am not depressed.  He kept going on at me how "auditing" would help me achieve my dreams.  And that if I just bought this "book" and read it.  Said that I had the skills to become an auditor myself if paid for this "course".  
EDIT: I just remembered, he actually gave me the book first - before he said I had to buy it.   Only when I said "I can keep this" did he mention I had to buy it...  Luckily I am not the type to feel pressurised into buying something just because its in my hands. 
At this point I had enough.  I wanted to leave.  This guy kept up the heavy sell at me.  I was getting more than a little worried at this point and demanded that he leave me alone and that I wasn't interested at all.  
On the way out - he spoke with someone else.  Then I had about 4 of them hassling me.  I mean, if I really was depressed I wouldn't have stood a chance.  I would have been the proverbial fly in the spiders web.
Nasty people.  Very nasty.