The incident unfolded at Nantes station when David, on a call with his sister, was fined €200 for using speakerphone in a quiet area. Initially told the fine was €150, David believed it was a prank and hung up. SNCF security staff approached him, citing noise regulation violations, and later reported that the fine increased due to non-payment. This sparked a discussion about acceptable phone etiquette worldwide. In many countries, noisy phone calls in public are frowned upon; UK train services even implement quiet zones. The incident puts into question how necessary it is to harmonize public decorum and individual rights regarding mobile communication. Countries differ in their approaches: Japan heavily discourages phone calls in public spaces while South Korea also advises quieter conversations. This case shines a light on the fine line between personal expression and communal harmony.