The Houston Astros Sign-Stealing Scandal (2017)

The Houston Astros used a camera system to steal opposing catchers' signs during their 2017 World Series-winning season, relaying them to batters by banging on a trash can in the dugout. MLB's investigation confirmed the scheme but controversially allowed the Astros to keep their championship title and issued no player suspensions. The scandal damaged baseball's integrity and the phrase "bang the trash can" entered the lexicon as shorthand for institutional cheating.