I’m the guy who seems to hold white people to higher standards of service than non-white people. At least when it comes to coffee.
If I get shitty service from a Starbucks (generally staffed by white people), I avoid returning to it for a long time. If I get shitty service at a Dunkin Donuts (generally staffed by Indians, Pakistanis, or Latinos), I cut them some slack and figure they’ll be better next time.