In the early days of World War II, the Duke of Windsor (the former King Edward VIII), paid visits to French troops to help boost their morale. His flaccid grasp of the French language was also an occasional source of unintended levity. At one luncheon where he was the guest of the French Army, he remarked that after the war, France and England should join hands to make a formidable peace.
That was his intent, anyway. Instead of saying “paix formidable,” however, he said, “pet formidable” — a formidable fart.
The Windsor Story, by J. Bryan III and Charles J.V. Murphy