When he, who didn't know how to swim, fell into the deepest part of the pool, remembered that in those kind of situations, one must keep calm, therefore little by little, he sank and sank until he reached bottom of the pool, and there, he couldn't keep his breath any longer and died drowned.
And nobody in the pool noticed what had happened until his cold and inert body, came floating to the surface of the pool.
The end.
