My character, recently and much simplified: "It is just possible that you are thinking of doing something that, by my allegiance, I absolutely cannot countenance. I'll be in my stateroom; let me know when you've finished not doing what I'm definitely not talking about."
Even if you never play GURPS - or don't know thing one about the game system - their books are great sources for Traveller and Charted Space. Long live His Imperial Majesty Strephon!
cheat. Have more than the other guy. Have it where the other guy doesn't expect it. Be where the other guy doesn't expect you. If even remotely possible, don't even be there at all. If you are in a fair fight, you have only yourself to blame.