The deeper Rock went with his gags about racism, the more and more uncomfortable the predominately white audience got more and more uncomfortable. As he closed out his monologue with an attack on why women don't get asked more on the red carpet other than what they're wearing, the crowd erupted with laughter. It was like someone had let all the tension out of the room - 'oh, I don't feel guilty laughing at this.' One social issue at a time then, eh?