How to become a tower crane operator

Every week I am on a worksite more often than not I will be asked "how do you become a tower crane operator" enquiring on how to enter our closed secret society.  At great risk I am going to reveal this secret and I hope my brother tower crane operators will not be to upset.  Well... basically you have to be born into it with your father being a crane operator and his father before him, either that or have three tower crane operators vouch for you before entering you districts tower crane lodge, then you go to a meeting arguing your case why you should be a tower crane operator.  Lodges differ from district to district with some requiring a majority vote from its members, others a unanimous vote. 
Once you are voted in you learn the secrets of the hook ;), our secret handshake and be able to travel the world and be welcomed as a tower crane operator at building sites everywhere.  The money and power is great but just remember with this power comes great responsibility,