i thought the Joffrey scene with the two women was more about Tyrion hatred than sadistic enjoyment. The scene started and ended with joffrey talking about his uncle and i thought the cruelty to the woman was secondary to making a statement to his uncle. I felt it was about him saying to his uncle i might not be to hurt you without looking like a mad king, but i dont need your advice or your gifts, so let me hurt the type of women you love so much.