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Apologetic Harvard prof had another food fight: Report

Is there another tempest in a teapot brewing in Boston?

The Harvard Business School professor who apologized for an email blitz against a Chinese restaurant over a $4 overcharge had a previous food fight with another eatery, The Boston Globe reported on its website.

Just before Benjamin Edelman tweeted his apology on Wednesday, Boston.com said, it received an anonymous tip from a "former manager" of a "Back Bay sushi restaurant" who had seen a similar email exchange several years earlier.

The news website said Edelman did not immediately return a call seeking comment. He did not immediately respond to a CNBC email seeking comment.

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Edelman had threatened legal action against a Massachusetts Chinese eatery over a $4 overcharge. After his emails became a media kerfuffle he apologized.

"Many people have seen my emails with Ran Duan of Sichuan Garden restaurant in Brookline," Edelman said in his statement. "Having reflected on my interaction with Ran, including what I said and how I said it, it's clear that I was very much out of line."

"I aspire to act with great respect and humility in dealing with others, no matter what the situation. Clearly I failed to do so. I am sorry, and I intend to do better in the future," Edelman wrote. "I have reached out to Ran and will apologize to him personally as well."

Click here to read the Boston.com update, and the newly surfaced emails.