In the Air Force, we have a rule: check six. A guy is flying along, looking in all directions, and feeling very safe. Another guy flies up behind him (at “6 o’clock”-“12 o’clock” is directly in front) and shoots. Most airplanes are shot down that way. Thinking that you’re safe is very dangerous! Somewhere, there’s a weakness you’ve got to find. You must always check six o’clock.
—US Air Force General Donald Kutyna
- Why Is Telling The Time So Important?(mylittlemr.com)
- Reverse Procrastination(everydayasceticism.com)