This is not so much a how to change, but is a behavior that I noticed in my cats, especially my two 3 month old boys. Any time I go to scoop out the litter boxes at least one cat, usually the kittens will get in the box to investigate what I am doing. Sometimes after I finish scooping one of the boxes, someone will decide to make a deposit. This evening I had not even finished scooping the first box when both of the kittens and my older boy decided to make deposits. Not only did three of the four make their deposits but each of them left me a nice pile of poo. At least I was able to scoop those all out before I finished with that box . Does anyone else have a cat that insists on using their box while it is being cleaned?