I will talk to my husband and his sister about an intervention for mom, but I doubt that they'll try it...they've been living with this for years and although it makes them angry and bitter, they've come to the conclusion that misery loves company...I don't think anything is going to truly happen unless Robin harmes herself or her mother...denial is a dark cloak that is hard to lift when one doesn't believe it is there...(I just made that up but it has profound meaning).