Gold bars
In 1917 a new recruit was walking down the Company street, and coming toward him was another 'soldier', so he said, "Hey, bub. Do you have a match?" To which the other 'soldier' lit the recruit's cigarette, The recruit said, "Thanks, bub." As the recruit passed the next building, an arm with 3 stripes reached out, and pulled him behind the building. The 3 striper said, "Do you know who that was that you just said 'bub, can you give a light?' The recruit said he didn't, to which the 3 striper said, "THAT WAS GENERAL PERSHING!!!!!" The recruit hurried back down the street, and pulled up in front of the General, saluted as best he could, and said, "General I am sorry about the way I asked you for a match, and didn't salute, but I have only been in the Army for three days."
The General said, "That is alright, son, but for God's sake, NEVER DO THAT TO A 2ND LT.!!!!!"