My mother is recovering from a major health event. Her sister, who is a nasty, spiteful cow keeps coming around unannounced under the guise of being caring. In fact she only wants to make spiteful and hurtful remarks which hurt my mum. I would LOVE to tell her to fuck off and never come back but that would cause WW111 in my extended family. How the hell can you deal with an unpleasant narcissist?