Advice please. How do you deal with a narcissistic boss/supervisor in the work place? Leaving is not an option so are there any tactics I can use to stay on the right side of a narcissistic boss?

Truth is the tactic. Your life is not just about that job as you would like to believe. Whatever you do straying from truth, will drag you more into suffering whether you keep the job or not. Whatever you do living with truth, will lead you out of suffering more...