Always be careful how you treat your employees because if you treat them poorly, karma certainly will rear its head. If the number of satisfying quitting stories we have told right here at FAIL Blog serves as any indication, it's that people with bad bosses are not going to leave their jobs quietly. In many cases, it is up to them to stick it to their bosses while they have the chance. Here, we have an employee who, among other responsibilities, was tasked with receiving dozens of sales calls a…