A friend and her young son, Reid, were browsing in a large bookstore. Engrossed in making a selection, my friend had lost sight of her child.

"Reid!" she called out, racing through the aisles. "Reid!"

Just as she spotted the boy, she bumped into another customer. "Pardon me, ma'am," he said, "but most folks come here because they already like to read. No sense in wasting your time trying to convince them."