The frog and the ox

An ox came down to a reedy pool to drink. As he splashed heavily into the water, he crushed young frog into the mud.

The old frog soon missed the little one and ask his brothers and sisters what had happened to him.

"A great big monster," said one of them, "stepped on little brother with one of his big feet!"

"Big, was he" said the old frog puffed himself up. "Was he as being as this?"

"Oh, much bigger" they cried.

The frog puffed up still more.

"He could not have been bigger than this", he said. But the little frogs all declared that the monster was much much bigger and the old frog get puffing himself out more and more until all at once he burst.

Moral of the story is, "Do not attempt the impossible."