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JoeLansing: I'm not sure that being "scared" is the best idea. "Cautious" maybe.
Being scared and in a state of fear seems to make people act irrationally. eg: "OH NO: the terrorists!! Quick take all my rights away!" or "OH NO: I'm being attacked: Quick, curl up in a quivering ball and hope the attacker magically disappears." or "OH NO: my wheels are loosing traction: I really hope I don't end up in that ditch... that ditch... that... * crash *"
I have personal experience with that last example
I think we can make good decisions without needing to be scared. Further more: I think being scared is often detrimental to making good decisions.