http://www.boston.com/food-dining/restaurants/2014/12/09/harvard-business-school-professor-goes-war-over-worth-chinese-food/KfMaEhab6uUY1COCnTbrXP/story.html

No swipe because it's mostly email screencaps. But here's the tl;dr version. It's basically a case study of let it slide (c) Chris Rock. Dude tarnished his reputation and publicly embarrassed himself all over 4 bucks

This Harvard business professor got overcharged $4 due to an outdated website. The mom and pop Chinese restaurant apologizes and offers to refund him the $4.
Professor goes from 0-100 real quick. Demands $12 and reports them to the authorities.
Restaurant basically says fuck you, do what you gotta do bitch. They post the emails, and the internet gets busy trying to dig up dirt. Come to find out, dude has a pattern of doing this type of stuff.

http://www.boston.com/food-dining/restaurants/2014/12/10/there-more-edelman-did-this-before-and-worse/00mTW39jcyXb3VNHZoXEYN/story.html#comments

Feeling that the heat was about to be on, he apologized and acknowledged his dumbness:

"Many people have seen my emails with Ran Duan of Sichuan Garden restaurant in Brookline.

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.

I have reached out to Ran and will apologize to him personally as well. "