Goddess Gabriella had trusted this employee and gave him a lot of responsibilities. But he took advantage of her trust and the access he had to embezzle company funds. She was not going to let it slide and so she used her heels to trample him all over his body until he gave back every coin he embezzled. Then the mistress sacked him because she could not trust him anymore.
Goddess Gabriella had muddy boots and she wanted to dominate this guy and to punish them using those same muddy boots. He had angered her with his indifference and for that, he had to be tortured and humiliated. The mistress enjoyed not just trampling him and making him feel pain, but she also liked how she made him dirty with her mud. He had a white shirt and she soiled it completely.