One day while sitting on a beach last summer I overheard a father tussle with his young son about whether the child was old enough to take out a small sailboat. The father finally relented. "Go ahead, but I’m not gonna save you," he said, picking up his newspaper. A while later, the sailboat tipped over and the child began yelling for help, but father didn’t budge. When the kid sounded desperate I put down my book, walked over to the man, and delicately told him his son was in trouble. "That’s okay," he said. "That boy’s gonna learn a lesson he’ll never forget." I walked down the beach to notify a lifeguard, who promptly went into action.