(Two customers are in my line to buy some bottle water. I can clearly tell from their accents that they are from another country.)

Me: “That will be five dollars, please. And may I ask where are you from?”

Customer: “Sure mate. We are from Scotland.”

Me: “Oh, nice. I hope you enjoy your visit to America–”

(A teenage kid nearby overhears us and interrupts.)

Teenage kid: “You better, seeing how we saved your a** in the Korean War!” *storms off*

(My two customers exchange glances, shake their heads, and look back at me)

Customer: “I love America.”