Dunkin' Donuts review: behavior / statement employee made

Friday 7-19 at 12:39pm, I ordered 2 hot large black americanos, 1 ssg egg amr cros & 1 egg american cross. An Asian employee named Michael who made my americano stated loudly ' Oooh NASTY! Why would anyone want to drink that! I told the cashier ( a mature Hispanic female who was very professional) that 'the comment was not appropriate for an employee to say and needs to be RETRAINED!' The cashier spoke to him and said she would speak to the manager.