Extreme disgust training for the slave. He has to swallow everything I give him. First the loo is cleaned - with his tongue! Then he can lick my toilet brush and the container clean and swallow it! Then he has to eat my pre-chewed food and swallow my pee from direct from the spring. As a special surprise, he gets to swallow other people's cum and because he has swallowed everything so well, he is allowed to cum and gets a biscuit from me... which of course he has to swallow with his own cum.