Hi, we had several barn cats years ago. They were adults when we got them and knew their thing. It has now become very apparent that we need barn cats again. I have a very healthy and well-fed herd of mice living amongst our critters. I have the chance to get a couple of female kittens for free next month. I wondered, when they are still so small and kept inside the barn do you have to do the litterbox thing? Any helpful hints would be greatly appreciated!