My ten laws (10 is always the number for some reason)
1) Shit happens, learn to deal
2) Your oath cannot be broken, lying can be allowed at times, but your oath is final
3) Mind your own business first
4) Don't assume to know the entirety of a person or situation, caution is still a must
5) Never try to get into a fight, but always expect a fist to be thrown your way
6) Never exceed force with a greater amount (non-lethal=non-lethal, lethal=lethal, knife=knife, gun=anything goes)
7) Cowardice is not an option, but a battle averted is better than a battle won
8) Try to plan ahead, you'll never be prepared for everything but it's better than being prepared for nothing
9) Think before you act or speak, more messes are created by rushing into thing, taking one's time is important
10) Any rule can be broken to protect another, family and loved ones come first, nothing should ever prevent you from protecting them; if someone is threatened, end the threat