A mistress will show her slave what is expected of him. He is going to learn that in order to serve his mistress, he must lick and clean her boots, no matter what she spits on the boots. She is deeply amused watching him observe the fact her boots are dirty. The mistress expects him to drop to his knees immediately and lick up all the spit.
A group of hot ladies love to spit on a slave. They enjoy making the slave look like a total loser. The slave will have to stand with his face exposed behind a wall while all of the ladies laugh at him, and spit on him. The slave was trained properly by a mistress that felt all he was worthy of is being spit on over and over again.