A customer left a $16,000 tip at a restaurant in the United States after ordering $37.93 worth of food and drinks earlier this month.

As per reports, the anonymous customer gave the generous tip to his order of two chili dogs, fried pickle chips and a few cocktails on June 12 at the Stumble Inn Bar and Grill in Londonderry.

“He’s kind of a mystery man,” bartender Michelle McCudden told NBC News. “I’ve been doing this a very long time and I never thought anything like this would happen to me.”

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Restaurant owner Mike Zarella said he first thought he misread the receipt.

“I thought it was a mistake,” he said. “Typo.”

He was told by his staff members that the friendly customer assured them it was no joke.

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Staff members at the restaurant divide the night’s tips evenly but the eight waiters working that evening wanted to extend the gift of generosity to the cooks too.

McCudden said everybody was extremely thankful for the customer’s kindness particularly after the pandemic forced more than 110,000 restaurants and bars to shut their doors in the past year.

“We went up and we thanked him,” McCudden said. “It’s just been a really rough year for all of us. For someone to do something like that really restored my faith in humanity.”