Thank you, very level headed, it’s very complex and the private conversation is definitely the way forward. It feels like my wife has a responsibility for her sister (and son), but given she’s the unemployed younger sister, I really don’t understand the sister. If she’s completely unaware of the situation ,she probably needs help, or if she IS aware of the situation and does it anyway, I’d say she definitely needs help/psychological evaluation (said in jest, but only partially).