I've never killed anything more than a venomous snake before, but even if I had I think I still would have been traumatized. I'm just that kind of person. I wish I'd had a gun to shoot it rather than having to feel it die, but in my area you have to have a concealed handgun license to carry a gun, and I don't have one. I also wish I'd thought about the Co2 poisoning but it never occurred to me. I'll keep that in mind though, just in case I ever have to do something like that again. I sure hope I don't though...ones enough for me. I think that kitten's image will haunt me forever.
I was shocked that the vets wouldn't help either, but we just don't have good vets in our area IMO :/ I didn't take the cat to them though. Maybe I should have, but I just called them since I was supposed to be on the job (not allowed to leave) for another 3 hours. If one had agreed to help though I would of taken the cat immediately regardless. It didn't deserve to suffer.