A Cow came to the pond to drink water and he crushed a young frog into the mud.
The old Frog suddenly noticed he was missing.
She asked her children where he was.
The children replied, telling her a huge monster crushed him.
She asked them how big this monster was, and began to puff herself up with air.
She kept puffing up, until she suddenly burst.
Lesson: Do not attempt the impossible