Once, there was a duck.
It started running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running...
Spoiler: Spoiler...and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running and running...
And then?
Spoiler: SpoilerIt stopped.