Quick background - my FIL has severe backpain from time to time which seems crippling. When he gets a bout of it, he turns nasty and morose (not judging, just stating). He has had various medical interventions which have failed, and recently a major surgical op which also looks like it might have failed.
My problem is that he has lots of prescribed medication including morphine. A cocktail of drugs which MIL keeps in her handbag (sometimes leaves it lying around, but that's a whole other thread). She also gives in to his requests for strong liquor to take with his medication.
He downs glass after glass of strong booze. So far this has only been in the evenings once DC are in bed but I suspect it'll creep earlier and earlier if indeed the last intervention does prove to be unsuccessful.
His family have a history of alcoholism (although the worst cases aren't blood relatives).
I am worried about this on many accounts. Should I say something, or is it none of my business?