if you fly into the sierra madre at night,in weather,in an airplane old enough to be your mother,and father,to shoot a full non-precision approach,and your uniform of the day is a pair of jeans,a "Jersey City Fishing Club".T-shirt,a beat up leather jacket,and a 3 day growth of beard, and its 0145 in the morning,and the only other traffic on the frequency is that C46 that just passed you el norte bound , at 10000, chances are really good that you are ,or were a freight dog, ahhhh the memories,round engines,tailwheels,leather jackets,strong coffee,sheer exhaustion,and the words of Ernie Gann,and St.Ex,made flesh, God bless it !