I had a quick question on problem peeing. My cat does this occasionally, but is generally very good about using the litterbox. When he was a kitten, he peed in an open suitcase on the ground and an empty laundry basket. I take care not to leave things around that resemble litterboxes now. However, I was just cleaning the litterbox and he ran in, jumped into an empty cardboard box and squatted to pee. I grabbed him, put him in the litterbox, and he did his business. I think he mainly mistakes boxes and things as things to pee in, but sometimes he pees on the carpet when I leave him to go on vacation. I left him with a petsitter while I was out of the country for 1 month and he peed all over her child's bedding. Do you think this is just a case of mistaken identity and/or acting out because I've left him? Just curious on what you guys think. Also, he was an outside barn kitten before I adopted him so maybe he was used to peeing wherever he liked when he was young. (He also likes to pee in the backyard now as a 6 year old adult)