you cant always just say it once and let it go, sometimes they let the animal carry on and it has another setback, but because they are so attached to the animal, they are letting it carry on for their sake, not the animals. I have actually faced this from a slightly different point of view. The cat i lost in Jan had had a liver prob for a 10 months before the situation got worse. she then developed a condition called cholangiohepatitis, basically an inflamed liver and bile ducts. her only response to medication was that she hated me and stopped purring, so i decided to stop, knowing that i might be sentencing her to weeks less, but at least she would be happy. I took her to the vets on New Years Eve as she had been sick about 4 times in 3 days, which was more than normal for her. The vet gave her some sub-q fluids and told me to come back on Tues (after hols). I asked if she was in pain, and she told me she would be feeling like she had the hangover from hell. I couldnt let her go on New Year's Eve though, i was too selfish. My neighbours reaction was 'see, the vet could do something', but to me i was prolonging the inevitable, and not for good reasons. I got extremely drunk and had such a bad hangover on New Years Day (i never get hangovers) that i realised i couldnt put my baby through that, so i made the decision then, even though i couldnt take her to the vets till Tues. On the Mon, my neighbour had popped round for something and i said that Snowy wasnt coming back from the vets the day after. First she told me off for saying it in front of the cat, and then told me that my cat had enough quality of life to carry on living. She had only seen the cat once that day though, and it was one of only 2 times she went downstairs that day, very unusal for her. She had been out of character all day, plus the vet had told me she could go downhill at any moment, and with working all day, i didnt want to come home to find out that she had been suffering all day, this way she went with dignity and I was there with her, it was peaceful, quick and painless. She also passed comment the second animal i have lost this year - she had mammary cancer (plus bad teeth, chronic conjunctivitis and possible cystitis) and had gone up 2 weeks after diagnosis as she was off her food. I could have tried her on medicine, but she was very unsociable, and to take her to the vets the day after if it didnt work wouldnt have been fair, her breathing went terrible and she left sweaty paw prints on the table when she went to the vets, never mind being aggressive getting her into the carrier. What clinched it was losing nearly half a kilo in 2 weeks, i knew she was just going to get worse and didnt want to put her through it. My neighbours reaction (she had taken me to the vet) was 'You haven't, have you?'. As she had opted to stay in the car while i was in the vets (45 mins), i was annoyed with her, for just saying it without knowing my reasons why, especially seeing as out of all the times (4 in 3 years) i have had to make that decision, it was the hardest one, i knew it was coming but couldnt say the words.