The workers at the Big R Restaurant were trying unsuccessfully to negotiate a new contract. On Monday, all of the busboys called in sick. On Tuesday, all the cooks called in sick. On Wednesday, all...

The workers at the Big R Restaurant were trying unsuccessfully to negotiate a new contract. On Monday, all of the busboys called in sick. On Tuesday, all the cooks called in sick. On Wednesday, all the waitresses called in sick. Was there anything unlawful about the employees’ behavior? If so, what recourse does the employer have?