"I'm not sure it is, but divorces and rough work schedules call for non-traditional solutions." It was how Ian and Mrs. Murphy had fallen into an unspoken agreement to take on each others children, or Hammond took them, or someone else.

"I prefer theoretical mathematics." He could imagine though that small business owners would have to do a lot of the financial footwork on their own. It made sense for Aziraphale and his father to share that in common.