Chicago’s sport’s mascots never forget. It’s been 20 years since Dave Matthews Band’s infamous “Poopgate” incident, when the group’s tour bus dumped 800 pounds of human waste off the side of the Kinzie Street Bridge. A tour boat happened to be passing underneath at the time, resulting in a disgusting brown shower for approximately 100 unlucky tourists. READ MORE: 20 Years Ago: Dave Matthews Band’s Bus Poops on Chicago In a video posted to social media, Benny the Bull (mascot of the NBA’s Chicago Bulls), Staley Da Bear (NFL’s Chicago Bears) and Tommy Hawk (NHL’s Chicago Blackhawks) honored the …