“If only more of us would follow the advice of 1950s-era humorist Sam Levenson. “It’s so simple to be wise,” he once said. "Just think of something stupid to say and then don’t say it.”
The recent foot-in-mouth moments offer helpful lessons for the rest of us. In our own homes and neighborhoods, we’re often sheepishly attempting to take back what we said. And now, with cell-phone video cameras and the Internet able to carry once-localized stupidity to the ends of the earth, it’s even more vital to think before we speak. Private comments can go public in an instant. "
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How to Prevent Verbal Gaffes - WSJ.com