There’s always so many great groups performing at Chicago Sketch Fest that’s it’s easy to get overwhelmed trying to see it all, especially with 3 stages going at once. Just scanning the schedule, I see Fowler Family Radio Hour, Cusick and Hallal, Your Little Ponies, 45 Minutes Locked in a Room with Don Hall and Joe Janes, and Elephant Larry. But I’m not sure any of that is an excuse to inflict the nearly-naked form of Brian Posen on unsuspecting commuters.