We also speak with a professor of hospitality and tourism about who we should tipping, and how much.

How we change over time, tipping etiquette

Hosted by Rob Ferrett, "Central Time" takes a unique approach to cover a variety of topics. Executive producer Dean Knetter and producers Tim Peterson, Colleen Leahy, Lorin Cox, Beatrice Lawrence, and Richelle Wilson explore the latest news, cultural trends, and explore ideas -- big and small -- finding the best guests to discuss these thought-provoking topics. Sarah Hopefl is the program's technical director.

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How we change over time, tipping etiquette

How we change over time, tipping etiquette