When I was a kid, the “Do as I say, not as I do” school of parenting reigned supreme. Those adults lecturing children on the dangers of smoking? Smokers, one and all. Kids would get in big trouble for ...

One of the most common questions I get is: Which is correct: X or Y? The X and Y don’t matter much. They change from email to email. Sometimes they’re accompanied by a Z or even an A, B and C. But the ...