I am having an issue with eliminating outside of the box with my cats. The problem is, I have 3 cats inside and trying to narrow it down to see who is doing it, has proven difficult. But, I have caught my female in the act so I think it's her. Someone is peeing right beside the box on the floor. Someone also will pee on any plastic grocery sack if it is left on the floor. Someone has even peed in their water dish overnight because the dog drank all the water and it was empty, leaving the bowl for someone to pee in it. I'm at my wits end and am ready to put them all outside. No one is acting sick at all, but someone is peeing at least once a day outside the box. How do I narrow this down and correct this behavior? I know you're going to suggest a vet trip but that's not possible right now and I truly feel it's not medical related at all. It's behavior. Should I get all new litter boxes? I do have 4 boxes so that's enough for each cat plus one more. Help before I lose my mind.