Highs school:
Was taking the order of a dude who was slurring and talking really low, so I had to ask him to repeat his order a couple of times. When we were done I hear him call me stupid and some other lovely words. I take off the headset and tell my coworker I'm not dealing with that asshole at the window, and head around the corner, out of sight.
Car pulls up so I peek around...
(What my coworker sees) I wheel around the corner and take the bag of food. "So, you're the asshole"
My uncle, whose voice I didn't recognize, and probably had a reason for slurring.
He felt like an ass, and my mission was accomplished. My father still brings it up to him.