A botched tumbler promotion on the anniversary of a pro-democracy massacre unleashed a boycott, police investigation and political firestorm A botched tumbler promotion on the anniversary of a pro-democracy massacre unleashed a boycott, police investigation and political firestorm I t was a PR nightmare: customers smashing Starbucks branded tumblers and mugs as fans deleted loyalty apps and cashed out prepaid balances. Amid the uproar, government ministries cut ties with the coffee chain and