Mistress Iside was shocked to learn that this guy had disobeyed her direct orders and she knew that if she was not careful, she would find herself not being respected by anyone and so she came up with a drastic was to make sure she was obeyed by all. She slapped the guy as painfully as she could since she knew that he would not do anything about it and that he was tied and helpless.
Mistress Iside did not want someone who did not know how to handle pain. So she had to make sure that the guy was hardened and she did it with her slaps. She slapped him repeatedly and she did it despite his cries of pain. She told him that if he braved them for a few days, then the rest would be easier and he would not feel a thing.