A recent incident at Berlin-Brandenburg Airport has reignited debate over airline dress codes. Edda Elisa Pilz, a 25-year-old German fitness influencer, was stopped by Lufthansa ground staff while attempting to board a flight in a sports bra and short shorts. According to Pilz, the crew member told her she was "naked" and refused to let her board until she put on a jacket. The influencer shared her frustration on social media, arguing that her outfit was appropriate for the 30°C heat. This is not an isolated case. Airlines worldwide have the authority to deny boarding to passengers whose attire is deemed inappropriate, though policies vary. In the US, Spirit Airlines explicitly bans revealing clothing, offensive garments, and bare feet. Other carriers have blocked passengers for wearing crop tops, short shorts, or swimwear. In 2017, Saudia Airlines tightened its rules, requiring women to cover arms and legs and prohibiting shorts for men. European low-cost carriers have also faced similar controversies, with passengers turned away for transparent tops or "obscene" crop tops. Lufthansa's policy is relatively vague: passengers must wear clothing "appropriate to the public nature of air travel and respectful of the comfort of other travelers." The final decision rests with the captain or ground staff, who assess each situation on the spot. There are no uniform international rules, but common sense is expected to prevail. For ATPL and ATC students, this case is a practical reminder of the discretionary authority airlines hold over boarding. Understanding these policies is crucial for future pilots and controllers who may need to manage passenger disputes or enforce safety-related dress codes. While the incident may seem trivial, it underscores the importance of clear communication and consistent application of rules in aviation operations.