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" My grandfather insists on paying when he and I dine out together, but he leaves a tip that&amp;#039;s less than 10%. Is it OK to add more cash when he&amp;#039;s not looking? Discreetly leave a few extra dollars on the table. P.S. Your grandfather&amp;#039;s actions are probably motivated by old habit \u2014 and perhaps a strict budget. He likely means no disrespect to the server. Rather than try to teach him about current tipping customs (potentially embarrassing him), it&amp;#039;s preferable to go ahead and supplement the tip. If leaving extra money on the table feels too conspicuous, hang back and hand it over directly with a quiet word of thanks. "^^<http://www.w3.org/2001/XMLSchema#string>
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