As a belated happy birthday to the Marines and a hello to my gun-totin' brother in Texas, here are the Marine Corps Rules for Gun Fighting. I especially like these three, which can apply to a lot of life situations, including editorial writing:
20. The faster you finish the fight, the less shot you will get.
21. Be polite. Be professional. But, have a plan to kill everyone you meet.
22. Be courteous to everyone, friendly to no one.