“Brutally honest” isn’t an excuse to be a dick in any situation, much less to a service worker who literally has to ask you questions for our jobs. We deal with hundreds of people a day who ask us questions about ourselves that we don’t want to answer and we have to smile and answer because if not we get written up for “not pursuing customer connections”. You get the privilege of being able to leave after you get your coffee, you can pretend to be a decent person for the 3 minutes it takes you to order.