Or how about,
"I'm not sure my eyesight is up to scratch, darling. Can you put our little darling in the car, and you jump in as well, I'm going for a 60 mile drive to find out if I can see OK."
"Of course, darling. No problem. Shall we visit Barnard Castle while we're out, it is my birthday, and if we get there safely, it will be a nice day out.
Do you think your eyesight will be up to it?"
"That's the idea of driving 60 miles, darling, to check if I can see OK."
And he drove 260 miles, to ensure his child was looked after properly!
He needs a carer himself. He's a danger to his family.