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Diners eat lunch at The King's Kitchen on July 11, 2012 in Charlotte, North Carolina.
To tip or not to tip? The unwritten rules of tipping can often be confusing and frustrating.
Last week, New Orleans Saints QB Drew Brees left a $3 tip on a $74 takeout order. He called it in, went to pick it up and took it home. The receipt was posted on social media and now he's being accused of being cheap.
To help us unravel the mysteries of tipping in polite society, we welcome Emily Yoffe, also known as Dear Prudence, from Slate.
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