Normally, when an angry Dunkin' Donuts customer marches into a store, things can only go poorly. But one riled-up customer in a Port St. Lucy Dunkin' realized she had met her match when she came face to face with the location's assistant manager, whose calm smile and cutting words were enough to dissuade the would-be trouble maker. 

The issue began when the assistant manager "slammed" the drive-through window in the customer's face, prompting her to enter the store and demand to speak to the manager. 

"What are you gunna do, I am the manager," the Dunkin' worker told her. "Actually she's the manager, I'm the assistant." 

After a quick exchange, the woman had no choice but to go sulk in the corner. 

"I'm glad you backed up," the Dunkin' assistant manager said. "Very smart."

The woman made the right decision backing down, because the manager was ready.

"The worker wanted ALL the smoke," ThisIsntRight commented.

In the end, it looks like all this woman's attitude earned her was a little extra sass with her morning's breakfast sandwich.