It does not take long for one to know a person. For those who know their sbject they can spot a fool because he gives himself away. Take up another line of work. You do not have the skills to explain yourself or teach. I am not a mind reader and you can not explain yourself. I teach architecture at Cal Polly University. I was a tool and die maker and general contractor before I became an architect. With your attitude you will never get off the ground. I guess you have not learned much at shoool. The one think I can say about you Aussies is that you can read and write well. What happened? I could cut you down to size but you already have done a good job all by yourself.