Mistress Bastienne did not care about this old guy. He had pissed her off and she had to do something about it. She did this by turning him into a poo eater. He did not have a say in what she did to him. What she wanted was what was going to happen and she made that very clear to him. He was forced to eat her shit and drink her pee.
Mistress Bastienne had an issue with her farmhand and she used her shit to dominate him and to make sure that he changed. She farted on him, peed on him and she then forced him to eat her shit. He never messed with her again after what she had done to him. He did not have a choice but to do what the mistress asked him to do. He was also scared shitless.
Mistress Bastienne was angry at her ex for not paying alimony in time. It was not good since the mistress felt that her ex was doing it on purpose so that she could ask him for it. He wanted to feel like she needed him but she did not want to give him any such satisfaction. So she facesat him and she had him eat her poo for him to learn his lesson.
Mistress Bastienne wanted to shit on her colleague and she did it because she was sure that he would not turn over a new leaf if he did not make it painful and humiliating for him to continue with his old habits. That is why the mistress used her shit to punish him. He regretted his misdeeds and promised the mistress that he would change as she expected him to.
Mistress Bastienne caught this guy being disrespectful to this old couple she liked and she took it personal. She had to punish him and make him apologize to them. So she lured him to her house where she made him eat her shit and drink her pee to learn that he could not get away with doing such things on her watch. He apologized to the old couple and even made amends.