I know what you're thinking...not another cat urination thread. Sorry. I NEED HELP! We have two adult neutered males. The oldest (Thomas) is 8 yrs. and the youngest (Sam) is 6 yrs. old. They hate one another. Our house is small, which I think adds to the problem. Sam is very territorial. He guards the food bowl, he guards the litter box. I've considered buying a second litter box, but there is literally nowhere to store it. Thomas started urinating on my son's clothing that was left on the floor of his room. Now he keeps his door shut. Thomas then began urinating on the clothing left on my other son's bedroom floor. We now have to keep his door shut. We discovered he'd been urinating on a canvas bag that was on the floor in our bedroom closet. Our two sons left a canvas bag that housed their XBox on the floor in the living room. I was afraid Thomas would urinate on that, so I moved it to the kitchen table. Low and behold, I discovered he'd jumped up on the kitchen table yesterday & urinated on it! I'm very frustrated!!! I have yet to take him to the vet as it seems he's just marking his territory. Any advice would be much appreciated!!!