"A son and his father were walking on the mountains.
Suddenly, his son falls, hurts himself and screams: "AAAhhhhhhhhhhh!!!"
To his surprise, he hears the voice repeating, somewhere in the mountain: "AAAhhhhhhhhhhh!!!"
Curious, he yells: "Who are you?"
He receives the answer: "Who are you?"
And then he screams to the mountain: "I admire you!"
The voice answers: "I admire you!"
Angered at the response, he screams: "Coward!"
He receives the answer: "Coward!"
He looks to his father and asks: "What's going on?"
The father smiles and says: "My son, pay attention."
Again the man screams: "You are a champion!"
The voice answers: "You are