Oh, no! Tiffers, I am so, so sad and sorry. I know she was old and not in great health, but that is still so sad. :((Sorry I am just now learning about this.)
18 years? wow - i had no idea dogs could live that long. that has to make it extra sad. are you gonna get a new one?? maybe you could get a new bunny. a 3-legged one, perhaps?