I told the slave to wait for me at the car to clean my boots after a walk - little did he know I just walked through some mud and also had a little extra surprise for him :-D As I arrive back at the car I slobber my gum on the dirty ground and step on it. I grind my boots on it and the gum turns into a brown mess - then I sit down on the trunks edge and order the slave to eat the muddy gum from my dirty feet and slurp them clean totally. Its so amusing to see him fighting to guzzle the dirt and watch his tongue getting darker and darker with every lick :-D.
