That being said, if one of my ferrets I have right now was terminally ill, I would have him/her put down when the time came, either because I can't afford treatment and s/he is suffering or if s/he gave up after being on treatment for however long.
I know of many who prolonged a cat/dog's life even after the vet had suggested PTS. One case, where the owner took up the vet's recommendation, but another animal lover thought its not right and took it home, only to have the cat passing away something like 1wk later. My question is, is there really a need to prolong an animal's suffering? Why not just let them go peacefully without the need to suffer the pain?
Both my in-laws suffered much before their death. My father-in-law died of renal cancer, we witnessed the pain he went through, all the screaming and such, even morphin was unable to relieve his pain. For both my parents-in-law, docs have advised against further treatment, cos they are already beyond cure. All we can do is to keep talking to my parents-in-law to let go of this sick body. Animals suffer the same pain, can't we just let them go? I have always been afraid to say this, cos I know many many animal lovers I know will certainly curse me.
I admit, the reason why my hubby let me keep ET, is, he made me promise to put him to sleep if he ever become incurable cos he is FIV+. It is everybody's dream to have a healthy (both physically and mentally) ones as their 1st pet. ET is FIV+ plus he isn't the most beautiful cat and on top of that, a very insecure one.