Stifled with Farts for Going Still

Lol what a loser, I can't believe my slave went completely out underneath my ass while I was using him to clean my asshole. I don't get how anyone could be this useless and weak, not to mention just ungrateful. While my slave is having sweet dreams I tape his mouth shut. I'm going to wake him up with an onslaught of my gas as punishment for being a total little bitch. He wriggles awake at the stench of my ass releasing the first blast on him. He quickly realizes that the farts are a lot stinkier when he can't breathe through his mouth at all. I plan on making my farts the only air he can possibly inhale. When he isn't sniffing my farts, he won't be breathing at all. But luckily for him, I am often very gassy so he will be kept alive by my endless farts for as long as I choose. I've decided that this will be his fate; no longer will he have any use for his tongue or the ability to speak. It will remain taped shut and he will only ever get farts or my waste fed into him