I've had this same thought before, but where do you draw the line? Should employers compensate employees for time spend showering? Can employees sue for wrongfu

I've had this same thought before, but where do you draw the line? Should employers compensate employees for time spend showering? Can employees sue for wrongful termination if they refuse to maintain personal hygiene for free? It's a ridiculous example, but somewhere between there and being compensated for performing a function lies the answer.