OK Billy, let's say we give you the benefit of the doubt and assume for a moment that you are not lying when you say that you knew that a gun screw may also be called a pin.
Are you then actually telling us that you moved the top lever looking for the pin or screw you were advised to remove... But you weren't intelligent enough to move your thumb so you could see it???
Holy crap, that's even better than thinking you didn't know the differing terminology for a screw. You are truly the gift that keeps on giving! When craigd states that our education system is not serving all students uniformly and well, he must have been thinking of you. You must have done far worse than turn out some snowflakes Billy. I'm thinking more in terms of a blizzard or avalanche.
