Madame Marissa had a new slave and she wanted to get through his first humiliation. She did not need for him to mess before she humiliated him. It was customary for her to do it. It helped her send a message to the slave and also to find out what his strengths were as well as what his limits were. So she used her slave as her human ashtray as she smoked and she also spat into his mouth and had him swallow it. He braved it all.