The 1980 Olympics were kind of crazy:
After setting a new world record on July 30th, Polish pole vaulter Wladyslaw Kozakiewicz made a rude gesture (bras d’honneur) to the hostile, jeering Moscow crowd. The crowd was rooting for Soviet jumper Konstantin Volkov. The image was seen around the world except ironically in the Soviet Union and its satellite states. To many, it signified Polish resentment of Russia’s control over Eastern Europe; in Poland, the gesture became immediately known as Kozakiewicz’s gesture. (gest Kozakiewicza).
After the Olympics, the Soviet ambassador to Poland demanded that Kozakiewicz be stripped of his medal over his “insult to the Soviet people”. The official response of the Polish government was that the gesture had been an involuntary muscle spasm caused by his exertion. Kozakiewicz for his part promptly defected to West Germany.