 The employer will be relieved of vicarious liability, which is usually assessed through the doctrine of "respondeat superior" for torts committed by the employee only if the employee has been deemed to engage in a frolic.Similarly, in the law of workers' compensation, an employer is not liable for injuries incurred by an employee during a frolic, but the employer can still face liability for the results of a detour.The term was coined in "Joel v Morison".