We recently adopted two older rescue cats (11 and 13 years old).
Apparently, one or both of them do not cover their feces when using the litter.
One of our other cats has rather strong feelings about litter etiquette, particularly when it comes to properly covering waste. We've seen her chase one of our other cats for not sufficiently covering up.
I mention this, because lately I've been finding significant amounts of feces just outside the entrance to our litter boxes. At this point, I strongly suspect that what is happening is that one or more of our cats are flicking the uncovered feces from one of our newer adoptees outside of the box.
Is it possible to teach an old cat new tricks, and get them to cover their droppings?