My wife is really stressed out and is convinced it can't be a medical issue since "cats only go outside of the litterbox on smooth surfaces in case of a medical problem". We will bring Bucatini to a vet. Any other thoughts if he is healthy? Thanks again...
Hi and welcome to purrs,
I'm not sure I agree with your wives theory that they only go outside on smooth surfaces... I've never heard that before in fact.
Rule out problems with the vet and then try and combat his stress. I assume you only have one litter tray - it might be AB idea to have at least two in different locations since you have two cats. Felioway diffusers can also be good.
My old Balinese boy got very stressed when my husband moved in with us and was pooping in my bedroom. I bought a diffuser, got an extra litter tray and spoilt him rotten. Thankfully in my case this did the trick and it stopped.
Check out the links below that Sam shared there will be tons of great advice.
Good luck