Professional

I have a friend who always tells a story,here it is:
Once upon a time ,there was a big factory with lots of complicated machines. One day one of them broke down, it was a bad news for the manager because without that machine he wasn't able to produce his orders. He searched and searched until he found a mechanic who agrees to repair the disabled part. He accepted to give him 1000$ if the problem fixes. When the mechanic came into the factory and had a look at that machine he asked for a hammer and just by some hits it started working. It was hard for the manager to give 1000$ for just some hits but the mechanic answered him so wisely: " I'll get 1$ for my hits and 999$ for the RIGHT place of hitting.
This is a true story which always is working ,especially for that friend but unfortunately lots of people don't understand the value of the place he orders to be hit!!!