You’ve reminded me of another Prince Phillip story. A friend of mine - an English actor - performed at a royal gala. He was allowed to bring his mum for the bow and scrape ceremony after the play. His mum, a little Cockney woman who loved the royal family, was thrilled to meet the Queen and Prince. So thrilled, she ducked off the line and got on the end of it and went up to meet them again...and again...and again. Prince Phillip loved it and encouraged her to run around again. So he does have a fun side.
That reminds me of a story told by St. Jerome of a rich lady who liked to show off her compassion for the poor by handing out coins. One day a woman who had already received her coin got back in line—when she got to the rich lady instead of getting another coin she got slapped.