Now and then I would find little poos on the floor. It took me a while to figure out what it was, and only when I observed the culprit in action. Maks is quite busy, so busy that sometimes he doesn't even have time to finish allowing his poop to meet the litter. So, subsequently, he'll walk around with half a bit of poop coming out of his butt, which will drop as he's running to his next adventure.