Solved a catbox mystery. Now to find a solution. [grossness spoilers]
→[More:] I have been feeding Sookie a diet that includes hairball remedies. All well and good, she has not hacked up a hairball since I've had her. However, periodically she gets a poop stuck in the fur near her hind quarters that inevitably winds up in the middle of the floor which I discover in the usual way.
I thought it was due to beef in her diet, but when I eliminated the beef, the problem continued. Today, I figured it out. Not hairballs, but hairpoops!
Time for the weekly 'butter on the paw' treatment.