This male cat was a stray that was abandoned by a neighbor that moved away. He was an adult when my daughter brought him in the house to make him an inside cat. We have two Cane Corsos and 4 cats to include this one in our home. All animals are spayed or neutered. 3 liter boxes in 3 separate rooms are available for use and are routinely cleaned. This cat is the only one that routinely will crap on the rug or floor or pee on something on the floor. None of the others do this. He has been in our home 1yr and anytime the door is cracked he runs out. I am at the point of tossing him back outside where he can pee and poop to his hearts content and he will be fed and watered. I believe this is territorial and there is no other option but to toss him out. Anyone have an opinion?