The other half of the question Charlie was "There's only a stupid answer" as if we all had a $1 from some Numbie (Numb-ee) that is always in a group that your training we would be very rich persons indeed, I always en-devoured with this type to provide an honest answer even in the face of adversity, though when test time came those chaps found out I was a little tougher in my expectations of their answers in the exam paper.
I have never been able to fathom why in every class there is a numbie hell bent on preening themselves as a know all when all they are doing is a distraction......yeah I marked'em tough even failed a couple so they had to re-sit the test again yep pay back sucker as Mr T would say.