The thing is you know the new tyres are on as are the wheels, because you can see them and know what they look like. Not only that, you know how the car should handle and to stop if somethings wrong. Suppose you never?
We would have crashed cars all over the place.
The idea that professionals are always correct, is a bit misleading, ask any gas fitter if they have ever been back to a job or not done by professionals?
Professional just means you get paid for it, it does not indicate a skill level.
I have worked as a Plumber for over 35 years but do not regard myself as perfect, when and if I where to, I would leave the game, for I could be dangerous in thinking I had nothing else to learn and was always right.
No I have made mistakes and try to be open about them. I have no trouble with either showing or telling people what I am doing and let the quality of that work good or bad speak for itself.
I have worked on contracts where a proper gas service including burner wash out as usually taken about an hour. Some guys seem to have done roughly the same service in less than 10 minutes. Now I am not saying their services where below safety standards.
But where they as thorough? And did the customer get value for money?
Surely if the customer knows a bit more they can decide for themselves. Lets be honest at present a customer has no idea if they are getting a dangerous cowboy job done or not and out of that ignorance may place themselves in danger. That is not fair.
Most people know a bit about painting and decorating and would moan if a decorator hung the wall paper upside down or forgot to paste it properly and it all peeled off. They know its wrong because they know what wall paper is supposed to do. If they know what is involved in a good gas service they will then probably know if it is right or wrong as well?
The thing is, if you get known for doing a good job you will probably get more work. So people having more knowledge can have some spin offs for trade.
The British Standards Institute writes perhaps thousands and thousands of standards for people to get to know about the latest safety aspects of all kinds of things.
They are also usually freely available to the general public to inspect in any library.
So if the information is available why should a gas fitter want to keep it from them?
Don't make sense to me.
If you want to keep secrets from the public perhaps membership of the masons should be included in GaSafe registration