If you haven't heard, it's not a good idea to screw with Evan Guttman. Or Evan's friends. He's not a Mafia dude (though he DOES live in New York, and could pass for the part), nor does he have a multitude of friends with baseball bats and mean temperaments. What he possesses is something we all have access to: the Internet. That, and some dogged perseverance.
Here is the link to Evan's hour-by-hour, then daily trials as he tries to do one thing: recover his friend's Sidekick from someone who happened upon the item, and didn't return it. It is a tale of "finders keepers" versus "do the right thing." What makes this even more interesting is how others react to Evan's 'net posts, and take to stalking the "thieves." Not unexpected is the apparent lack of concern displayed by the police force in such a large city for a plight as miniscule as Evan's seems to be.
If you can't bear to read the whole diatribe, here is a link to the New York Times article, outlining the final outcome to the saga. (It may require a short, free registration to view.)
For what it's worth - I found this to be a great tale of how one man can make a difference thru a few simple posts on the 'net. And frightening, too!