Grace Kelly once gave an interview to the JFK Library in 1965 about an amusing experience she had with the then-Senator John F. Kennedy in the 50’s.
GALLICO: Was [the trip to the White House with Prince Rainer in 1962] the first time that you had met the President?
GRACE: Actually, no. The first time was before he became the President, during that year he was in the hospital in New York with his back. I had been to a dinner party where I had met Mrs. Kennedy and her sister [Lee Radziwill] the first time. They asked me to go to the hospital with them to pay a visit and help cheer him up. They wanted me to go into his room and say I was the new night nurse.
GALLICO: That was a quaint idea. Did you?
GRACE: Well I hesitated! I was terribly embarrassed. Eventually I was sort of pushed into his room by the two girls. I introduced myself, but he had recognized me at once and couldn’t have been sweeter or more quick to put me at ease.