So aliens abduct three people: a politician, an athlete, and a postal worker. They bring the abductees aboard their ship, put each one in a small empty room, completely sealed, and give each one of them two small balls made of solid titanium.
"You have twenty four hours," aliens tell the three people. "After that, we will check on you. Whoever impresses us most using these balls will be set free."
The next day, the aliens who visited the prisoners talk to their friends in the ship's mess hall.
"So, the first guy, the athlete, was juggling the balls, throwing and catching them, and didn't drop a ball once. It was rather impressive."
"Does it mean he was the winner?"
"No, next we went to see the politician. He was showing us magic tricks, making the balls vanish and appear in a different place. We found it very entertaining."
"So, did the politician get to go home then?"
"No, the one who impressed us most was the third guy, the postal worker. He managed to break one ball and lose the other one."