i cuss gratuitously, but subject matter's another story. this is going to be a good show. are there any subjects that are never appropriate for humor? ferguson: people say a good comedian doesn't have to cuss. and i thought, "that's [bleep] rubbish." how dirty is too dirty? -why is all that so funny? -i don't know. what you're about to hear is going to shock and disgust you. wong: if you choose to go blue, you gotta do it right. dirty for the sake of dirty, there's nothing worse than that. you must promise me something. you won't get me in any trouble on the show tonight. [ music playing ] [ cheers and applause ]