Did you know that “78% of burglars said they check Facebook, Twitter, and Foursquare for potential targets”?
 
So if you like to check into the airport when you leave on vacation and also check into every nice place you visit while on vacation, remember that offline criminals may be watching.

Doing searches based on geo-location factors has become incredibly easy nowadays, and oversharing private information just serves burglars the right targets on a silver platter.
 
Discretion could be more valuable than you think. And you can brag all about your awesome holiday when you return.
 
More interesting numbers here: http://www.zdnet.com/article/infographic-80-of-robbers-check-twitter-facebook-google-street-view/