Sounds like the kitties are trying to tell you that they want their toilets back upstairs!

I tried to move my boxes to where it was convenient for me, but the cats had other ideas. After months of picking up messes in the office, I put the box back in there. I am about to add a box to Cameron's room, which I never wanted to do, but after finding pee on a few items, I think I need to do that too.

We humans.... one toilet and there were 5 of us living here when all the kids were home. We learned to share nicely. Why can't the cats?