Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: well it was actually a month ago, but i just can't stop thinking about it. it feels like the biggest mistake of my life. my dog conan was my best friend, the only constant in my life for the last 5 years of moving around, losing friends and girlfriends. he was a young guy, i got him as a puppy and he was only 5 when he died. he was always there for me, and he was 100% dependent on me, and i feel like i let him down. 

about 4 months ago i took my dog in for his routine vaccines, and the vet noticed he was jaundiced. he recommended we do a blood test, ultrasound, then an aspiration (liver samples from a needle). after spending over $1200 on tests, the vet didn't know what was causing his liver to be enlarged and his skin to be jaundiced, but recommended we do a biopsy (cut him open and take out a big chunk of his liver). after spending so much with no answers, i balked at the biopsy so the vet sent me home and said we can schedule it later.

a few days later, my dog's stomach started swelling up like a balloon. i left conan at my girlfriends' house while i was at work, and her dad who lives next door and loves dogs, noticed conan looked really bad with the expanding stomach so he took him to his vet, rather than mine. his vet thought he had an infection from eating something toxic, so he gave him diuretics to release the fluid and antibiotics to treat his liver infection. 

his belly lost all the fluid, and his liver started returning to it's normal size, so i thought everything was fine. after the 3 weeks of antibiotics were over, however, he started to retain fluid in his stomach again, and he never lost his jaundice. so i took him in to my girlfriend's dad's vet again, and he gave him another months worth of antibiotics. it helped, but after the month was over he was getting skinnier, even though he was eating. the vet then said he probably had cancer and i should put him down. i asked if we could do the biopsy, and the vet said he'd probably just bleed out and there was no treating liver cancer in dogs anyway.

i came to peace with this for a week, and even had an appointment set to put him down when he was looking like he was in really bad pain. but then one day we was back to his normal self, running around and playing. he was still really skinny, even though he was eating, but he wasn't shivering and laying in bed all day. so i took him to a third vet, who had him on about 16 pills a day. 

she didn't want to do the biopsy either, until she had determined if his blood would clot or not. so she did the blood clot test, and it was determined that his blood wouldn't clot. she then said i could either send him to a liver specialist who could do blood transfusions and such, or see how the various medication he was taking was working. i opted for the latter.

5 days after i took him to the vet, his stomach had swollen up again and the diuretics didn't work. he wouldn't pee, he wouldn't lose the fluid in his abdomen. on a wednesday he refused to eat, even cheese and lunchmeat, which he would always eat. in my mind i knew he was going to die. i went to work, and my girlfriend's dad took him to my 3rd vet when he collapsed coming down the stairs. 

i got a call from the vet telling me that he was bleeding internally, he had gone into shock, and he had to either go to a specialist right now and get a blood transfusion and surgery or i had to put him down. i asked how much for the specialist, and she said just the blood transfusion would be at least $1000. i've always been someone who balks at whim purchases, especially large ones, and i balked at this. i said i couldn't afford it, even though i could, and said i had to put him down. at the time i still believed he probably had cancer, and had given up on him.

so after going to the vet and petting my poor dog while he was put down, i realized what a horrible mistake i'd made. the 3rd vet had taken a urine sample with a needle, and since his blood wouldn't clot he had continued to bleed internally for several days, which is why the diuretics didn't work. 

now all i can think about is that i opted to have my best friend put down because i didn't want to spend a few more thousand dollars at the vet. i'm 31 years old, and i thought all my horrible mistakes were in the past. i thought i had learned from them, and had become a better person. now a month later, all i can think about is that the worst mistake i made was only a month ago, and my poor dog is gone forever because i made a stupid decision over the phone. 

edit: here's a picture of conan. http://imgur.com/sa9utyj,xpkz3nh#1

TIFU by euthanizing my dog