With a title like "Cat poop", things can only go downhill from here. 

My cat Dilbert was born with some sort of problem that makes him poop uncontrollably all over our house.  It's probably something like irritable bowel syndrome or ulcerative colitis, and it basically gives him constant diarrhea, which he promptly spreads all over our house because he can't possibly get himself clean.  It's good that we have hard wood floors, but it's not good that we have cloth couches and beds.  We took him to the vet several times and gave him different types of medicine that's meant to get rid of worms.  I even had to bring a fecal sample to the vet for testing.  That was probably the pinnacle of my adult life:  Scooping runny poop out of the litter box right after Dilbert went, and storing it in a little plastic container.  Ah, how far I've made it in life.  Unfortunately, none of the medicine worked, mainly because he doesn't have worms.  I found a few similar stories online, but the problem was always fixed by some sort of medicine or change in food.  We tried several different brands and types of food, but nothing really changed. 

So to all those internet travelers out there who search for things like "runny cat poop", "liquid kitty feces", and "feline diarrhea", here's your answer: 
  1. Pray.  I don't know if God cares about feline digestive systems or newly washed bedspreads, but I can't recommend a solution without mentioning that Dilbert's problems were solved after we prayed about it.
  2. Make your own food.  There's probably a good reason why traditional cat food causes stomach problems, and it's likely something along the lines of it being over processed.  So the solution is to make your own cat food.  Using a crock pot, cook a concoction of water, ground turkey/chicken, brown rice, green beans, peas, and carrots, and stir it all into a big, ugly stew.  After a few hours, the water boils off, and you're left with a pretty simple blend of normal cat food ingredients.  The turkey or chicken meat make it low-fat, the rice provides fiber, and the vegetables provide some vitamins.  I never knew cats liked vegetables, but not only do they love them, they like them even more when they're soaked in meat juice.
  3. Optionally buy Spot's Stew.  Available at places like the Vitamin Shoppe, Spot's Stew is an all-natural cat food that basically contains all the ingredients in the make-it-yourself brew.  This food is pretty expensive, so it's usually not financially feasible to feed this to your cats all the time.  But for whatever reason, our cats would be more than willing to kill for it, so we mix some in with their homemade food on occasion.
If the exact ingredients in the homemade brew don't agree with your cat (or your cat doesn't agree with them), try something similar.  Some cats have a pretty complex pallet.  Corn didn't seem to go well in our case, and V8 (for the extra vitamins) worked for a little while but caused vomiting after a few weeks.  Cats have very sensitive digestive systems, so small changes can have major results. #nature