That plane was full of mad people. They were so noisy that after a while of flight time the pilot in command, asked the copilot to do something about that.

 

After a while the co-pilot come back, and the plane was immersed in a peaceful quietness.

 

"What did you do?" asked the pilot to the co-pilot.

 

"Oh! It was very easy!" the co-pilot replied, "I opened the exit door and told them. Come on guys! to the backyard! playtime!".