i have recently been interested watching this series of shows on youtube, they do great jobs of showing how scams work by con artists....
http://www.youtube.com/realhustletv
there are a few good ones there such as wifi scam where they create a fake wifi server at an internet hot spot and steal people credit card details, trick people with 3 card monte, use card skimmers to read cards and pin hole cameras to watch pin.... some great smart tricks they expose here, have a look