Hello! What would you do if you have evidence that an employee is criticizing coworkers, boss and company to a customer--while on the clock? Snide remarks about one employee, basically implying that they are no good. Remarks about how management doesn't stay on top of things, many fellow employees are lazy. Nothing really terribly, but horribly unprofessional. Do they have any legal right to do so? Would you fire them immediately? Write them up? This is obvious stuff, right? It's not like "hey, it's not spelled out in the employee handbook, so I can do stupid stuff"? Thank you!