In this photo taken Monday, Aug. 6, 2012, a man walks past a sign advertising a happy hour at a restaurant on Second Street in San Francisco. The concept of happy hour when bars offer

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In this photo taken Monday, Aug. 6, 2012, a man walks past a sign advertising a happy hour at a restaurant on Second Street in San Francisco. The concept of happy hour when bars offer lower prices or two-for-one specials seems like a widespread tradition, but is actually illegal or restricted in quite a few places. (AP Photo/Eric Risberg) less 

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Associated Press
Wed, Jan 9, 2013 2:53 PM EST