We had to local CAA conducting certification testing on a B744 simulator, they wanted to conduct the BFL test and requested the sim people to mark a point 50% along the runway so that they could start stopping at the point!
They looked slightly red when we pointed out to them that BFL didnt mean 50% acceleration, 50% deceleration!
The scary part is that they were certified and operating Captains on that aircraft!
Mutt.