Okay, I was cleaning the litter box today and noticed that one of my cats has Diarrhea. The problem is I have 8 cats and I have to figure out which cat has the diarrhea. So I guess I can put each one, one at a time in a seperate room too see which cat has diarrhea? Anyways, I was wondering what kind of illnesses could my cat have? or could it be that he just ate something bad, it passes through his system and it will eventually clear up? Or is it something else? Any ideas?