Mistress Clarissa does not like dirty people and her new slave was one of them. She did not want to stay with a dirty slave so she forced him to be clean. It was not negotiable for her so she did not give him a chance to explain anything. She crushed and trampled him and made sure he understood what she wanted and what she meant through the pain she inflicted on him.
Mistress Emily and mistress Lou tracked down the guy who had hacked into their system and stolen crucial data. They found out he was a chubby middle aged man living alone in his apartment. They went to his place and pretended to be from a neighboring HOA and were collecting views of how to improve their neighborhood. They went inside and surprised him by crushing him using their high heels. They tortured him till he told them what he did, how he did it and returned their data.
Madame Marissa found some of her stolen stuff in her slave's suitcase and when she asked him, he pretended he did not know what she was talking about. She decided to make sure he never did that again so she crushed his fingers to make sure they never stole from her ever again. She used her high heels to do it and needless to say, it was extremely painful for the slave.
This guy had the misfortune of being punished by many mistresses. He had promised to fix something for them but he was not able to and they did not want to lose their money. So they punished him by trampling him. What was worse about it was they crushed him at the same time and he had to withstand all their combined weight and they were wearing high heels. He refunded their money plus interest.