This mistress felt that her slave deserved to be punished for what he had done to her. He had ignored her and gone ahead to do his own things in his own way. He ignored what she had asked him to do and she could not take it. She took a shit on a polythene bag and she forced him to eat it. She watched as he ate all of it under her supervision.
This old guy thought that he could mess with this mistress and get away with it. It does not work like that with her and she had to teach him a lesson. She even called her friend and they had a great time torturing him. They used shit and pee to punish him and the poor guy had no choice but to do what the cruel mistresses made him do.