Slightly OT: Brain Teaser

[rotationslim]

Correct, I am bored.

Correct, it is polo, water polo to be exact.

Before each match the official checks every player's fingernails. They must not be long or the extensive contact in the pool will lead to scratching of opponent.

If a player fails this inspection, they often kneel down on the pool deck, and "file" their fingernails on the grout between the tiles on the pool deck.

(small world, coach Z coached my daughter last year before his untimely death assuming we are talking abou the same coach Z here)