New Ground Theatre's Clybourne Park, written by Bruce Norris as a sequel, of sorts, to Lorraine Hansberry's classic play A Raisin in the Sun, takes quite a bit of time to get rolling. But once it does, this exploration of racial tensions at different points in American history is wickedly hilarious. Director Chris Jansen effectively employs a slow, nearly dull pacing to build to a significant payoff, particularly in the second act, when the purposefully bland tone fits the play's scene of a neighborhood-association meeting. Following Friday's performance, I was amused at how, during the presentation, I went from being almost bored to laughing heartily.