PAYS INSTANTLY

TIL that during WW2 a Spanish man convinced the Nazis that he was a spy living in London, and fed them false information. This grew to him working for Britain with captured spies, creating a fictional network of other spies, and being awarded a medal from both Britain AND Nazi Germany. [source, comments]

TIL that during the American Revolution, British forces deployed smallpox diseased prostitutes against US forces, it was highly effective and killed an American general. [source, comments]