There is a legend about a prestigious martial arts tournament in Japan. Japans greatest MMA fighter, an expert in karate, Ninja and Judo was waiting with disgusted impatience for his opponent to arrive.

"He dishonours us Master. He is a disgrace and must be disqualified immediately!"

The Tournament Master raised his hand.

"He has arrived."

"Then he is invisible for I do not see him"

"Listen closely. He can be heard rather than seen. Look to the sky."

The fighter looked up and cocked his head to listen. He heard the music first. Some sort of classic rock which definitely wasn't to his taste. He sneered disgusted all...