Powerup, I agree with you completely. Going back to my earlier post, it seems that judgement is the first thing to go. So a maintenance engineer is judging whether a component is fit to remain on an aircraft, or a design engineer is checking whether a piece of design can be accepted. Both chaps need their judgement at 100% - pure mechanical skill tasks can be slowed down, decisions are more difficult.
I have seen an aircraft destroyed (thankfullly without loss of life) due to a manager making an unjustifiable decision after a liquid lunch. He was eased gently out into early retirement shortly afterwards - my opinion at the time was that he should have had the book thrown at him, and my view's not changed yet.
For that matter it should be applied to everybody in this industry, whether it's a pilot or engineer, or a receptionist or accountant. Everybody is making decisions that affect safety and/or the viability of our employers. I want my colleagues sober in working hours !
G