Kenny went streaking through the streets.
Throughout the episode Kenny and Spenny were judged on their saneness. Spenny said for the humiliation, "I thought I would make Kenny do something that most people would deem as insane." This involved Kenny streaking in the street.
Kenny switched Spenny's decaf with regualr coffee, to try and get him wound up for the psychologists.
30th Sep 2003 / Season 1 Episode 20
Kenny tried various methods to get Spenny upset in time for the visits with the psychologists, including switching Spenny's decaf coffee with regular coffee, and random acts of violence. Kenny complained that two of the judges that voted for Spenny were themselves crazy.