For a brief moment early in my married life, I worked at a shoe store. My boss was a very even-keel kind of guy. He was jovial; “merry,” some might say. Only once did I see him really upset and it was over—of all things—a receipt. Because random Thursdays in February don’t see a lot of foot traffic, it was a rather slow day in the store. So to test us, he casually dropped a paper receipt right in the main aisle—a small piece of trash visible from any angle in the store. Then he watched. Over the course of an 8-hour shift, as many as six different employees simply walked right over that receipt. We weren’t assisting customers or addressing some emergency. We were just tending a store that didn’t really need tending. Later that night, the boss laid into us for ignoring that small piece of trash. Broadly, it reflected a store that was unclean and unkempt. Narrowly, it reflected a retail staff that simply didn’t care. And why? “It wasn’t my fault.” “I’m not the one who put it ...