Putting to sleep a cat that pees outside the box
Now this will surely cause a debate but I am interested in seeing how much people will tolerate.
My sister put her cat to sleep at the age of 10 (about 2 years ago) because she could not get her to stop peeing on the carpets. The cat had done it for about 3 years on and off and in 3 different houses. My sister spent thousand of dollars replacing carpeting. She of course did take the cat (female) to the vet and he said it was behavior. I think it started when she moved to a house where the owner's previous cats had peed. Anyhow, with a new house and toddler -- she couldn't take it anymore.
My husband put is cat to sleep at the age of 14 for spraying (not peeing). The cat (male) started it after I moved in when we got married. He sprayed my clothes, patio furniture, a worker's boots, etc... We never sought medication for him (didn't really know it existed at the time 9 years ago). In hindsight I feel bad about it but I don't know what we could have done differently.
I see soooo many threads on pet sites about peeing cats and I feel sooo bad for those owners. It is a frustrating problem that is often very difficult to solve. Rehoming can be very traumatic for a cat and who is going to take a cat that pees inappropriately anyway?