Ambassador Richard Washburn Child once dined with Calvin Coolidge at the White House.

After dinner, the president said he had something to show him. He led Child to one of the smaller rooms in the mansion, opened the door, and turned on the light.

“On the opposite wall hung a portrait of himself,” Child later recalled. “I thought it so very bad I could think of nothing to say.”

For a long moment the two men stood on the threshold. Then Coolidge snapped off the light and closed the door.

“So do I,” he said.