Here's the story of a couple of fraud fortune tellers that have gone the extra mile to gather information about their victims in order to make them literally throw away their money.
http://austriantimes.at/news/Around_the_World/2012-05-04/41408/Fortune_Teller_Used_Google_to_Speak_to_the_Dead_
I mean, google and social networks are an obvious pick, but using surveillance systems... The "water demon" is a bit cheesy, though
