Miss Diana felt like punishing her slave and she did not need a reason to do it like other mistresses do with their slaves. She went and found her slave in the kitchen and she used her boots to trample him. She kicked him and brutally dominated and tortured him. She kicked him in the face and made sure he was in a lot of pain before she let him go.
Lady Alshari is a mistress who likes to do anything she feels like doing since she is one of the few mistresses brave enough to even attempt humiliating a slave in public. She was waiting for her slave and she had promised herself that if he came later than they had agreed, she would have no option but to punish him there and then in public and humiliate him badly.