Lady Zora was frustrated with how slow her slave was and she had to do something about it. She felt that he had to change and since he was not taking the initiative to change on his own, she had to force him to change. She went ahead to make him change by facesitting on him and choking him. Lady Zora first of all told him what she will do to him before going ahead to do it.
When lady Zora found out that she had a dishonest slave, she knew she had to nip that behavior in the bud if she was to have a good working relationship with him. So she went ahead and she crushed him with her boots to show him that she would not tolerate his behavior. And for good measure, she made him lick the soles of her boots before she let him go.