Lady Scarlet felt that her slave did not give her the respect she deserved. And to make sure she got it, she did not talk to him. Instead, she used her sneakers to trample him and he was in a lot of pain that led him to ask himself a lot of questions and try to guess what would have led to her punishing him the way she had. He got it right.
Lady Scarlet allowed this loser to have his fun but he was supposed to moderate himself so as not to make noise for her. He forgot about that and he made noise for her. She warned him but he did not heed her warning. So she had no choice but to punish him. She did so using her sneakers and she taught him a lesson he will never forget by trampling and crushing him.