Mistress Contessa likes honest slaves. When she realized her slave was dishonest with her on a number of occasions, she had to rectify the situation. She did this by making remove his pants and spanking him as hard as she could. She wanted him to associate the pain he felt as she spanked him to dishonest. As a result, he would remember the pain anytime he was about to be dishonest and avoid being dishonest.
Mistress Gaia did not like the food that her slave had cooked. She had to make sure he made better food so she punished him. She bent him over and she whipped him as hard as she could. She humiliated the slave besides inflicting pain on him and by the time she was done with him, she knew he had understood what she wanted and would not repeat his mistake.