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Somehow someday we will reach several crossroads in of our life, for instance, changing jobs, changing career, decision on business, relationship, investment, migrate or not migrate, etc.. You won't know whether you are heading to the right path, and you fear that you will choose the wrong one. How many mistakes can we afford to make in our life? Sometimes when I can't make a judgement, I flip a coin, the coin will help me to make a decision. There is one time I flip a coin whether I should call back the employer and ask about my job application status, well, the coin 'told' me that I should, so I called in... Later on, I did get my job offer after making such a call.