Mistress Iside had to teach this guy to eat poo as he was full of shit and he had to learn what he was required to do. The mistress made sure that she had to deal with the guy in a way he had never been dealt with before. The guy cried and tried to beg her to stop what she was doing to him and even fine him but she refused and went on doing it.
When it comes to issues of responsibility, mistress Iside does not mess around. And today she did not mince her words as she used her shit to dominate and humiliate this loser. The mistress went ahead to make this loser eat her shit because he was irresponsible and she did not want him infecting those around him. So she made sure that the punishment was severe so as to act as a deterrent.