The Timber Lake Playhouse's current production of Sweet Charity features the single most electrifying, exhilarating dance number I've ever seen on a stage. I'm well aware of what a sweeping and potentially exaggerated generalization that statement is, and almost hesitate in making it, because it's the type of effusive praise that can easily make theatre-goers (to say nothing of theatre participants) roll their eyes and say, "Oh, come on." But I'll say it again: Sweet Charity features the single most electrifying, exhilarating dance number I've ever seen on a stage. And I'm betting that fellow patrons at Thursday's performance might easily feel the same way.