I get it. I get Professor Ben Edelmen was frustrated. He ordered $53.35 worth of Chinese food from Sichuan Garden, a local restaurant. He was charged $57.35. Apparently, an out-of-date website was to blame.
Like I said, I get it. I tried to buy a keg of Pabst Blue Ribbon a few months back from a mom-and-pop liquor store up on the corner. Their website said $50. When I got there, they wanted $70 and refused to honor the price on their website, which the lady said that she didn't know how to update.
You know what I did? I went to BevMo. By contrast, Prof. Edelman of the Harvard Business School (who has a Ph.D., a J.D., a master's, and a bachelor's degree from Harvard) cited state consumer protection laws, demanded a half-off discount, and reported the restaurant to the authorities.