We all have had that 'duh' moment where you don't understand something that is completely obvious. Steve had one over the weekend when he realized for the first time that soy sauce was made from soy beans... DUH! Curtis mispronounced 'LinkedIn' for about a year before someone corrected him. And now we have a listener who told of a monumental 'duh' moment her friend had!

What's a 'duh' moment you had in your life?