They've pooped on the floor exactly once during a time when there was a lot of change and one of them was stressed out. I'm actually more concerned about regula

They've pooped on the floor exactly once during a time when there was a lot of change and one of them was stressed out. I'm actually more concerned about regular old vomit or a hairball than poop, but even the possibility of cat poop spread all over is enough to turn me off to it.