An employer has jurisdiction to discipline an employee for conduct occurring outside working hours and away from the workplace, even where such conduct is not work-related, where: (1) the misconduct has the effect of destroying or seriously damaging the employment relationship; and (2) there is a sufficient nexus between the conduct and the employer's business interests. The determination requires a multi-faceted factual enquiry considering the nature of the misconduct, the employee's position, the employer's profile and market position, and the impact on the employment relationship. Where an employee publicly associates themselves with their employer on social media and then posts racist content, this creates the requisite nexus with the employment relationship, particularly where the employer's business depends on its public reputation among the demographic targeted by the racist speech. Racist speech that advocates hatred based on race and constitutes incitement to harm falls outside the constitutional protection for freedom of expression under section 16 of the Constitution. The use of racial slurs manifesting deep-rooted racism affects the employment relationship regardless of whether uttered on or off duty. The parity principle does not require identical sanctions where employees' levels of participation in misconduct differ materially (e.g., posting racist content versus merely 'liking' such content). An employer need not prove actual reputational damage where the charge alleges risk of reputational damage and the employer takes prompt action to mitigate such risk.