A woman who was unhappy with a Facebook friend of hers ended up getting fired because of it.

 

 
Now, obviously it's a boneheaded thing to complain about your job on Facebook, but let's think about how empty your life must be to not only be a bad tipper, but also print out a Facebook status that doesn't even name you directly to have someone fired. Man, that's a level of petty that I can't even fathom. The Punisher/The Crow vendetta game.