Former U.S. President Barack Obama showed 30 Chicago teens that he still has some on-court skills — as well as a deep appreciation for the Windy City and its residents! The 60-year-old garnered a fair amount of attention on Thursday after popping into a workshop at the South Side YMCA. The event was organized in a collaborative effort between the Chicago Bulls and Pep Rally Takeover — an Obama Foundation community partner. The workshop's participants included South Side YMCA basketball team members, Simeon Career Academy girls' basketball team members and CHAMPS Male Mentoring program members. NBA star Patrick Williams was also present at the event, along with some coaches and the mascots for the Chicago Bulls and Chicago Sky (Benny the Bull and Sky Guy, respectively). It turns out that Obama , who's working on the upcoming Obama Presidential Center in South Side Chicago , had some free time while nearby and wanted to check out the workshop as well! After walking...