I have never fallen into quicksand, but like most people, I have been anxious about it at least several times in my life. You have too, right? It’s a real thing — you can be sucked down into the soft liquefied Earth unexpectedly, on hikes or on random walks. One of my friends fell into quicksand in Utah, and she is always prepared, so she knew exactly what to do: move your legs slowly and deliberately, in small, tightly controlled steps. Lay down to spread out your weight. Though it’s c...