Seattle Mariners fans enthusiastically adopted the "rally shoe" tradition after a memorable postseason watch party incident where a supporter placed a Birkenstock sandal on his head during a massive comeback effort against the Toronto Blue Jays. When the Mariners completed a historic multi-run rally to win the game, the hilarious stunt instantly went viral across social media and stadium broadcasts. Ever since, fans embrace the tradition as a collective good-luck charm whenever the team needs a miraculous offensive spark late in a game.