The paragraphs below don’t even tell 1/4 of the story; a movie surely will be made about Count Robert de La Rochefoucauld.
Cycling to Bordeaux to meet a contact who was to arrange his return to England, however, he ran into a roadblock, taken prisoner, and imprisoned at the 16th-century Fort du Hâ. His explanations that he had been out after dark on a romantic assignation were not believed and, in his cell, La Rochefoucauld considered swallowing the cyanide pill concealed in the heel of his shoe.
Instead he faked an epileptic fit and, when the guard opened the door to his cell, hit him over the head with a table leg before breaking his neck. (“Thank Goodness for that pitilessly efficient training,” he noted). After putting on the German’s uniform, La Rochefoucauld walked into the guardroom and shot the two other German jailers. He then simply walked out of the fort, through the deserted town, and to the address of an underground contact.
(h/t The Mighty Flynn)