I can't stand it any longer. I'm going to toilet train the cats, using the 9-step program outlined in this book, Kick Litter, by Perre DiCarlo.
The training method is so simple that it is explained in two pages. The rest of the book consists of photos of the author's cats and cutesy captions of what the cats "think" about the method. The book's cover jacket is an instructional poster you can remove and unfold, and contains everything you need to know to try this method.
I'll give it a try. If I'm successful, I'll shoot a video of my cats in action.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects