In a district where 92 percent of people voted for Kamala Harris, fury and despair have arguably never been better business. In Washington, D.C., ‘rage rooms’—facilities where customers can pay a modest fee to take out their frustrations on helpless plates, cups, and glass bottles—have enjoyed a noticeable uptick in demand since Donald Trump’s victory in the election last week. “On a typical night, we will get from seven to nine reservations for the rage room,” Ray Page, general manager at Kraken in the Penn Quarter, told The Washington Post on Friday. “Tonight since the election we’re up to 17....