During a walk in the forest my friend and I had a mean idea - but needed some prep. We get our boots totally muddy and dirty before heading back home. When the slave opens the door for us we demonstrate him the extremely dirty boots - and order him to lie down on the floor - then use him as our living doormat! But we not only use his white shirt to clean our boots - we also rub them on his face and stand on his head! A couple of times we even press our dirty boot soles on his mouth - he should get a taste of dirt as well!
