(I work for a popular coffee chain that sells bottled drinks at the counter. The bottles have a tamper-evident pop-top feature. One day, a customer approached the counter after purchasing one of these drinks.)

Customer: “Hey, I just bought one of these things and when I opened it the cap popped up.”

Me: “Yes, they do–”

Customer: *interrupting* “It says ‘Do Not Drink If Button Is Up’.”

Me: “Yes, it’s a tamper-evident button to–”

Customer: *speaking very slowly* “I want you to understand what I’m saying here! I can’t drink this – it’s been tampered with!”

Me: “When you opened the container, the button popped up–”

Customer: “I’M NOT SURE YOU UNDERSTAND WHAT’S HAPPENING HERE!”

Me: *headdesk*