This mistress wanted to make her sneakers dirty before she went back to the house and she got her slave to lick them clean. She wanted to use the same sneakers to also trample him. So she had to make sure that by the time she got back, she had dirty sneakers. The slave was in the house and he did not know the things she had planned for him.
Goddess Mel does not like dirty people and when her new slave turned out to be one, she had to teach him how to behave and how to observe good hygiene standards. So she trampled him with her sneakers and that is how he learned that he could not afford to drop the ball when it came to personal hygiene as she would not allow him to do it. He changed.
Mistress Zephy did not like anyone wasting her time and she felt that this guy had done that. She was not going to let him continue to do that. So she did what she does best and she punished him. She even made sure that it was a punishment he would not forget in a hurry. So she trampled him with her sneakers and he cried like a little baby.