I’ll take a shot at the metaphor. Delete: telling someone they can use the whiteboard (but you didn’t erase it) Secure: cleaning it off when you’re done for the next user.

It is because everything must end that everything is so beautiful.

Get some enzyme spray specifically for addressing pet urine. There are lots of varieties online from pet warehouse places. Nature’s Miracle is a popular one. Get the urine destroyer, the stain and odour eliminator isn’t as good.

It actually breaks down the urine residue as opposed to the other suggestions here which mask or encapsulate the smell without addressing the source.

I have used enzyme on quite a few things I thought would never be usable again - def worth their weight in gold in my experience.

Razor blade ftw!

I think in this case that’s a distinction without a difference.