Let's say you nailed the proper short-sale entry point in a former market leader like a true pro. Should you look for more selling opportunities in the same stock? In most cases, yes. This begs the question: In what situations should you not? One is the state of the stock market itself. If one of the key indexes -- that is, the Nasdaq composite, the S&P 500 or the NYSE composite -- follows through powerfully after a serious decline, short-sale