I first came across this on Twitter (where it's been seen millions of time), and this news item writes it up.  Short version:  customer cancels at last minute dinner reservation at TABLE restaurant when he has to go to the emergency room; restaurant won't waive its cancellation fee ($250, the full charge), so the customer uses his travel insurance to cover it; the restaurant owner Royle then sends the cusotmer an abusive and insulting email, which goes viral.  It's hard to imagine anyone who reads through all this ever setting foot again in one of her establishments:  as someone joked on Twitter, "you don't want crazy cooking your food."

Even by Boston standards, this is exceptionally weird and self-destructive behavior by the restaurant.  One thing I noticed when I was giving a workshop at Harvard in the fall is that the restaurants seemed to be over-priced relative to quality (something locals confirmed) and have a kind of odd conception of professionalism (although staff were all very pleasant in person).  Case in point:  at one dinner in Cambridge, we began to notice it seemed a bit chilly in the restaurant (indeed, one of the servers was wearing a jacket), so asked them to turn the heat up.  At that point, the server explained that the heat wasn't working, and, indeed, had not been working for hours and hours.  Rather than tell customers who had reservations in advance or even at the door, they just acted like everything was normal until asked directly!   I have to say in decades of dining in my native New York City as well as in Chicago, I've never encountered something that weird!