my daughter can't leave anything on the floor in her room or closet because if she does her female,spayed cat will pee on it. Nothing is wrong with her except that is what she does. When my daughter used to travel often for business, the cat would pee on her luggage when she got back.My daughter learned she had to leave her luggage in the garage and pack and unpack there.
I dunno why the cat does it- but it's her thing.
One of my friends has cats and she says she can't leave anything of hers on the floor either due to her cats peeing on whatever it is.
I'm not a cat person so have no answers. They don't make any sense to me. I know if my dog did that I would reprimand her but my daughter just goes with the "it's just a cat thing"...............guess that's why I'm a dog person.