Perhaps there’s a natural impulse we have, maybe from way back in our earlier evolution, to pay special attention to the negatives. Stay alert. There was a tiger in a clump of grass last week. Could be one in that one over there. A dark cloud brought troublesome weather. Is that another dark cloud forming in the west? Expect the worst in order to survive the next threat. Man, do I ever fall into that trap. This past Sunday I obsessed on the clumps of grass that could be hiding more horrible news