Everyone defends his treasure, and will do so automatically. The real questions are, what do you treasure, and how much do you treasure it? Once you have learned to consider these questions and to bring them into all your actions, you will have little difficulty in clarifying the means. The means are available whenever you ask. You can, however, save time if you do not protract this step unduly. The correct focus will shorten it immeasurably.
Never assume that the person you are dealing with is weaker or less important than you are. Some people are slow to take offense, which may make you misjudge the thickness of their skin, and fail to worry about insulting them. But should you offend their honor and their pride, they will overwhelm you with a violence that seems sudden and extreme given their slowness to anger. If you want to turn people down, it is best to do so politely and respectfully, even if you feel their request is impudent or their offer ridiculous.