Dear Prudence,
I don’t have a great relationship with my mom and stepdad, who I am quite sure have undiagnosed psychological problems and have trouble keeping jobs. They are in their early 60s and recently moved in with my only sibling and her family. I have a close relationship with my sister even though she lives several hours away. Recently she was venting to me about her frustrations of having them live with her. Money is tight in her household and they don’t contribute anything except occasional child care. My sister apparently told Mom she would have to move in with me when my stepdad dies. I thought she was joking, but she was serious. She said she would drop Mom off on my front porch if she had to. I want nothing to do with my mom and certainly don’t want to be her plan for retirement. How can I get out of this situation besides moving and keeping my address a secret?