Ashley Johnson had a good job making good money as a waitress at Brixx Pizza on Sixth Street in uptown Charlotte.
But that changed about a week ago, when a couple came in for lunch and stayed for three hours - forcing her to work an hour past her quitting time.
And they left her a tip she thought was pretty measly - $5.
Johnson did what most folks who need a good rant do nowadays. When she got home, she went on Facebook. "Thanks for eating at Brixx," she wrote, "you cheap piece of ---- camper."
And like a growing number of workers, she found out the hard way that what you say on social networks can be used against you, particularly if you're in a position of public trust or public service.