The town is fifteen miles away. One of them has to be at the hospital at 11am. The other has to be at the college at 11am. It's only a small town; the college and the hospital are a mile apart and five minutes drive.
One of them has to be at the hospital for as long as an appointment takes. The other has to be at the college for a specified amount of time; he expects to be finished at 12:30.
Both of them are leaving from the same address. Both of them know the town they are going to. They both have phones. They can both walk a happy mile.
Neither of them like being a passenger because both of them are the best driver in the world.
If I wasn't working I'd be going to the hospital with DH. It's not a poking or prodding procedure so he's happy to go on his own.
If I could be there I would persuade DS that the tenner saved in petrol would be available for him for other purposes - Lynx, spot cream, stuff teenagers need.
If I were doing the driving it would be simple and I'd possibly have time to pop in to the big town supermarket for some fresh fish.
Conversation lasted four minutes before both agreed logistics were impossible.
I want to knock their heads together. Mum used to say that but I don't think I really understood why 'till now.