Mistress Anna did not like how her new slave behaved. He had to know his place in her house and then act and behave accordingly. Since he was having trouble doing that, she chose to assist him. But it was not pretty as she forced him to eat her shit and drink her pee to teach him a lesson that she would not tolerate his behavior in her house. He learned his lesson.
Mistress Anna wanted to punish her slave cruelly. So she did some research and she settled on the kind of punishment that he would not expect and that would send a clear message to him. She chose to turn him into a human toilet. She took a shit on him and she had him eat it. She watched him swallow her shit and drink her pee and she could tell it got to him.