(((((((Calista))))))

Then there is the direct way.....
"To me this is an inappropriate conversation so I am leaving. It was nice seeing you. Good bye"
Then turn on your heals and leave.
If you have arrived as a passenger with someone (ie your mother), then go out on the porch or take a walk or to another room. If someone approaches you, walk away. If your brother calls, hang up.
YOU HAVE A CHOICE NOW.
YOU HAVE CONTROL NOW
YOU CAN TAKE CARE OF YOURSELF.

Took me awhile to learn that. Right now, in this time, in the present YOU call the shots. YOU choose to not answer the phone or stay in a situation that is toxic.
And yes, there is fall out. But you are in a position to protect yourself.

Just my thoughts here for what they are worth...