One day, a soldier was going to see the officer but was stopped by the guard at the gate. The soldier said: "I have an emergency and must see the officer." The guard said: "You must get the password right." The soldier said: "Can you be flexible?" The guard said: "No, logistics management!" At this point, the soldier was very upset and scolded the guard: "You are just a watch dog!" Then the guard replied: "You got the password, please come in! Financial analysis!"