"on average" flags deceipt
Krusty, the other thing I took away from the evidence of BB was the use of averages. I can state with 99.9% confidence that every MAN & WOMAN in Australia, has "on average" one testicle and one breast. Averages can be used to come to completely erroneous conclusions, as per our simple example. Therefore, whenever we hear "on average", something is being hidden in the data, and we need to drill into this claim more carefully.
On average, our pilots work 18 hours per week was the claim from BB. Firstly, that is stick hours, not duty hours. This hides the peak and troughs. Someone doing 3 or 4 BOC returns a week for two week is going to be shattered by the end of the second week, yet their average for the month appears to be acceptable to someone without the subtle understanding of this situation.
Go back and listen to the evidence, BB uses "on average" frequently.