(I don't drive, by the way)
I've put my foot down. I've said she's not going round there tomorrow for Mother's Day and she's not running her father to hospital for an appointment on Monday either.
As for her father, he's sicker than any of us are openly acknowledging around him. He wants to play it as if this is a temporary indisposition- and he'll bounce back from it. But it isn't and he won't. He can barely walk, his pneumonia hasn't cleared up, there's something fundamentally wrong with his stomach- and he isn't eating properly. Every time the phone goes I expect it to be my mother-in-law calling for help- help we're not in any fit state to provide...