The bunny story made me think of something sort of similar that REALLY happened in our family. It doesn't have a funny ending, but.,..
When my brother was in first grade in Ohio, his class had a pet turtle, one of those dime store red-eared sliders. Every weekend, a student was allowed to take the turtle home and care for it.
When it was Brad's turn, he was very excited to bring it home. (We have both always loved turtles!)
Saturday morning the turtle was missing---it had vanished from its bowl. We looked everywhere and finally my father made the grisly discover of half a turtle. Our boxer dog, Dutchy, seemed to be responsible for the missing other half.
My father spent the rest of the day going to pet stores with the back half of a turtle, furtively trying to compare it to the ones for sale to try and find a new turtle that would match. He succeeded and my brother was sworn to secrecy. He returned with the new turtle and no one ever noticed the difference. It was one of the few times he has been able to keep a secret!