Carla reports a hand injury that she sustained while operating a saw after bypassing the guard on the saw, contrary to the employer's work rule. carla’s hand injury required her to miss work for two days. carla’s employer disciplined her for bypassing the guard contrary to its instructions. the employer regularly monitors its workforce for safety rule violations and disciplines employees who bypass machine guards regardless of whether they report injuries. did the employer use a disciplinary program to retaliate against carla for reporting a workplace injury?