What Id like to know from any instructor is why do I need to know any of this bollocks in the first place.
When you go to an airport and see a shiny new aeroplane maybe it be a 737 or 747 taking you on your holidays and think "I really really do want to fly one of those" then that is why you have to learn all this "bollocks"
I stopped saying why and just got on with it last year sometime - I am now more than half way through my ATPL ground exams.