The Mouth That Roared

I'm so sorry, sweetie. It's the hardest thing any pet owner has to do. I've been through it three times with ferrets; you always feel like you've failed somehow, like if only you'd done something differently, they would have lived. It's not the case, you did everything you could, you loved him, cared for him, and made him as comfortable as you could, and at the end, you ended his pain and suffering. None of us could really ask for more than that, and most of us will never receive it. *hugs* the pain does go away, in time.
Requiescat in Pace, Renfield.