|"Is this all real? Or has this been happening inside my head?"
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Railway Bylaw 15 was a regulation that prohibited the use of skateboards, rollerskates, scooters, and bicycles at Surbiton Station. Anyone caught violating this rule faced prosecution. A notice posted at the station informed people about these facts.
Behind the scenes
The real-world Railway Bylaw 15, as defined by the UK Department for Transport, refers to 'Pedestrian-only areas', where bicycles, skateboards, etc. are not permitted.
- Harry Potter and the Half-Blood Prince (film) (Mentioned on a poster)