This is a short awareness story of how we only see what we’re taught to see.
From the October, 1982 issue of Pacific Northwest magazine:
“…A special forces officer had been sent to Vietnam to teach modern warfare to the Montagnard tribesmen. Before he left, he had been taught that it was impossible to see the tripwires to booby traps. Accordingly, he never did; but his Montagnard bodyguard spotted them every time.
After returning to the States, the soldier tried an experiment. He mentally conditioned himself to seeing golf balls. After that, he found golf balls almost everywhere he went. As of the date of the articles, he had collected a total of 38,514 lost golf balls, some of them more than thirty years old.”