Fred got into the habit of using the doormat as a toilet. Was a bloody nuisance. Ended up having to forego having a doormat, after working our way through a few different types which didn't offer any deterrent.
Happily, the current cat residents stick to litter tray or outside.
Thought I was doing well at getting catface to start using the facilities outside.
Noticed a funny smell coming from the front door area. Thought someone had stinky feet.
Turned out it was catface using the door mat as a litter tray.
FML.
New door mat ordered. Lots of enzyme cleaner used.
On the plus side, the floorboards look in good shape, and there's lots of meat on the engineered wood floor for a potential sanding one day.