In the movie 'The Jerk' he demonstrates how people market things like his eyeglass grabber without testing them. Then he demonstrates how people get fleeced by fake charities. (Kitten juggling!) Then he goes on to demonstrate how magazine ads lead people to think they can "be somebody" if they have the right drink in their hand. Then there's the part in the carnival where he explains what people can really have from the prize shelf if he guesses their weight incorrectly. He even mocks ridiculous marketing schemes. (Cup-o-Pizza.) In 'Dirty Rotten Scoundels' he demonstrates how con artists operate. In 'My Blue Heaven' he demonstrates how mobsters operate and even break into politics. It has been speculated that 'Bowfinger' is some kind of a mockery of Scientology. 'Roxanne' demonstrates teaching people tolerance and logic. Then, my mom swears that he had a movie showing how televangelists scam people that my mom swears is just like a James Randi book called "The Flim Flam Man." I think there are more examples out there too. He was the cowriter of some of those movies. I thought maybe it was a writer he worked with, but after looking a few of those movies up on the net, I think he's the guy behind that stuff. I love it too! And I could really go for a Cup-0-Pizza about now.