On Tuesdays he brought groceries and asked about my mother.

On Saturdays he walked Oliver in the stroller while I rested on a bench near the waterfront.

He had to learn which blanket Oliver preferred, how to hold a bottle properly, and that a crying infant was not a problem solved by asking an assistant to schedule an appointment.

He was a terrible diaper changer at first.

“Your grandson has discovered a weakness in your management style,” I told him when he fastened one diaper backward.

Warren laughed so hard that the baby startled.