Working for a maniac boss
Provide perspective and hope that things can return to where they were before, if her symptoms are not devastating yet. You may try giving feedback, such as “you are not your usual cheery self” or “you seem less agile” or “you had always been steady as a mountain, despite the stress you have here.” In case of severe symptoms, don’t waste your energy trying to work through an unworkable situation. Make sure you do not take any of his offenses personally. Find another job (boss). Remember, all jobs are temporary on the long run.