The New York Times has an article about a new type of social network that is used to help people fabricate excuses, For Liars and Loafers, Cellphones Offer an Alibi. Complete strangers will pretend to be your boss or your doctor and call girlfriend or your work for you. Before you dismiss this as bizarre, you should know that thousands of people have signed up for this service!
However, before you sign up yourself, think, can you trust people that are looking for people to lie for them?