Lady Scarlet wanted this guy to realize that she was not messing around when she sought to punish him. The mistress used her faceslapping fetish to torture as well as dominate him but she only did this after she had tied him up so that he would not resist what she wanted to do to him. He cried and wished that he had never messed with her as the punishment was brutal.
Lady Scarlet was pissed that the Santa she had hired was drunk and that was not a good show or example to the children. So she took him to a different room and she slapped him so hard that he became sober. She repeatedly slapped him until he was in good shape to do what she had paid him to do. She warned him never to do that again or else he would regret it.
This loser thought that he could do whatever he wanted and get away with it. So the mistress showed him how wrong he was. The mistress went ahead to tie him after she had stripped him naked and she slapped the shit out of him. He learned his lesson the hard way and he never messed with her again because he knew what she was capable of doing to him.