Two men are flying around in a helicopter, getting more and more lost,searching for their intended destination airport. The pilot says to his passenger, 'Look, there's a big building over there. I'll go and ask someone'
Hovering as close as he could the pilot shouts out to a worker in the office block, 'Where am I?'
The worker shouts back 'In a helicopter!'
With that information the pilot turns to his passenger and tells him all is now going to be ok.
The passenger is quite impressed but still asks how the pilot can possibly know this from being told he's 'in a helicopter'!
'Well' says the pilot, 'The answer to my question was quite correct'. 'It was also very accurate, concise, with no ambiguity or other information offered'
'Go on' says the passenger.
'The information given to me by that worker was also of absolutely no bloody use to me whatsoever' replied the pilot, 'and on that basis, I can deduce I am outside the bp building and I know the way to the airport from here!'
You can change the name of company to suit. I used bp as I work for them!!!