TIL!
https://factrepublic.com/facts/27537
When John F. Kennedy met Joseph Luns, the former Dutch Minister of Foreign Affairs, Kennedy asked for his hobbies and he answered: "I fok horses", Kennedy, struck with surprise responded: "Pardon?", Luns replied: "Yes, paarden!". 'Fokken' means 'to breed', and 'horses' means 'paarden' in Dutch
Discussion
Probably funnier when you speak Dutch. That it's true (which I learned years after I heard the joke for the first time) makes it even better.