Starbucks employee receives more than $16K in tips after refusing to serve a customer who wasn’t wearing a mask | TheHill June 27, 2020 by Leo More than $16,000 has been raised for a Starbucks employee after a customer posted on Facebook that the barista refused to serve her at a San Diego location because she wasn’t wearing a mask. Source: Starbucks employee receives more than $16K in tips after refusing to serve a customer who wasn’t wearing a mask | TheHill Well done, everyone.