The Amateur Historian is a great admirer of the play The Madness of George III, which became the excellent (if somewhat horrifying, when one sees the medical treatments in vogue in the eighteenth century) film The Madness of King George. The playwright, Alan Bennet, said that one of the reasons he chose to write about George III was because he liked his sense of humor and offers this example.
One day during the king's illness, the king's equerry, Manners, saw that His Majesty had decided to hide underneath a couch in lieu of waiting for his dinner. With perfect composure, Manners set a place on the floor in front of the couch, bowed and began to walk out backwards.
The king, still under the couch, replied, "That was very good... manners."