Quick background about my situation... I am taking care of my elderly grandfather who is in his mid 80's. He has COPD, has taken many falls and broken bones, and is starting to have very bad memory problems. He gets confused with everyday normal conversations and it is almost impossible to have a conversation with him at times. He is able to get around on his own and do some activities but I am doing all the housework, meals, etc. On to the second part of my story.... a family member who has severe mental disorders and substance abuse for 20+ years, and been to rehab a dozen times, is constantly telling my grandfather huge fabricated stories and talks badly about all other family members for the sole purpose of getting money out of him. And believe it or not it is working. He believes everything that person says even though the story changes on a weekly basis. He cannot remember previous conversations. When anyone tries to confront him about this he gets REALLY mad and now it has gotten to the point where it is spiraling out of control. I notice personality changes after their chats and a lot of hostility. It has gotten to the point where everyone in the family is afraid to get involved. Has this happened to anyone else before? If so what can be done???