Who cares about cold food or even slightly surly service: A good percentage of us say we'll tip wait staff no matter what.
Nearly 40 percent of participants in the NBC News online State of Kindness poll conducted by SurveyMonkey tip 15 percent to wait staff even when the service is subpar—and young people were even more likely.
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Tipping etiquette has made headlines recently as receipts with both generous tips and no tips have made the rounds of social media. High-end restaurants and the national chain Joe's Crab Shack are experimenting with ending the practice.