The customer isn't always right. At least according to Lufthansa's viral complaint clapback.

Source: Business Insider

Lufthansa apologized to a customer on X after sarcastically responding to their complaint. Joan Valls/Urbanandsport/NurPhoto via Getty ImagesLufthansa's sarcastic reply to a customer got more than 15 million views before it apologized. While other airlines mock passengers to boost PR, that doesn't work for everyone.