Employees who engage in protected concerted activities relating to work generally are shielded from discipline by Section 7 of the National Labor Relations Act (NLRA). Where otherwise protected work-related activity involves profanity or offensive speech or actions, whether in or out of the workplace, on a picket line, or on social media, such may violate employer civility rules and/or equal employment opportunity laws. Important interests are at stake, including for employers to maintain a safe, discrimination-free workplace; and for employees to exercise their right to communicate about workplace matters. This Article analyzes recent cases on the question when offensive employee conduct loses NLRA protection, highlighting the National Lab...