Hog fuel is like coarse mulch? As a puppy, Lark loved eating mulch. She especially seemed to like it when I put Frank's Red Hot Sauce or Sriracha on it, to try to deter her. If you can call an obstruction minor, she developed a "minor obstruction" that required surgery. No hog fuel for us! I'm not worried about the green lawn that much, considering what my kitchen floor usually looks like!