Lurker. But know cat pee. Best bet is to go all CSI on it. Unfuck under black lights!!! Cat pee will glow yellow. Then attack with enzyme cleaner. Cleaning it up right away really will help break the habit. And lend to friends when your cat knows who's boss. Also, OSHA (US Occupational Health & Safety Admin) requires businesses to keep safety information on all workplace chemicals. So you can find out exactly what is in any US market cleaner by googling OSHA and the product name.
I think I’ve told my blacklight story before? I have a hand-held one that I used for dog purposes, and then decided to CSI my whole apartment. Bathroom? Not bad at all. Kitchen? Totally fine. But you know what fluoresces bright white? Spackle and laundry detergent. My stairwell and laundry room looked like a crime scene. Spatter EVERYWHERE. Like a Tide homicide.