I know my cats well, but this concept makes me laugh... Privacy? I know them well enough to know that their needs actually are comprised of the following:
Food
Water
Stubborness
Sleep
Soft places to sleep
Weird places to sleep that aren't comfortable
Bags to hide in, sleep in, sit in, or look in
Anything you don't want them to touch or anyplace you don't want the to be
Playing with feathers, fake mice, or the bathtub drain
Shiny things
The laser pointer
Tuna
Cuddling, but only when they want to
Privacy isn't the top of the list when I think of things my cats require or the things they are good at!