One day an airplane cleaner was cleaning the pilots’ cockpit when he saw a book “How to fly an airplane for beginners. Volume One”.
He opened the first page which said, “To start the engine, press the red button.”. He did so and the airplane engine started.
He was happy and opened the next page. “To set the airplane moving press the blue button.”
He did so and the airplane started moving at an amazing speed.
He wanted to fly so he opened the third page which read, “To get the airplane fly, press the green button.”
He did this and the plane started to fly.
He was excited!!!!!!
After 20 minutes of flying, he was satisfied and wanted to land so he opened the next page. Which said:
“To learn how to land, please purchase Volume Two at our web site. You will receive it in 4 to 5 business days…. or visit the nearest bookshop!!!!"
He fainted …….
LITTLE OR HALF KNOWLEDGE CAN BE DANGEROUS