Mistress Zephy wanted to dominate this slave and it occurred to her that the best way for her to do it was to use her shit to dominate him. The mistress forced the guy to watch as she took a shit on a plate and then she handed it to him. She then sat back and watched as he ate her poo. He had to eat it as if it was ice cream.
Mistress Zephy was pissed when this guy misused her money. She had firm instructions on how he was to use it but he did not and now she wanted it back. In addition, she also turned the guy into a shit slave and had him eat poo to realize how serious she was about the whole thing. That is how the guy changed and stopped the games he liked to play on people.