I just remembered this one. It ‘went viral’ a few years ago so you might have seen it, but well worth a watch if you haven’t. 🙂
In the early 2010’s the Australian railway company Metro Trains Melbourne became concerned by the number of children being killed or seriously injured by ‘playing’ on trains in train yards or along railway lines, and commissioned this Public Service broadcast, which became so popular that almost all schools in Australia showed it to their pupils without urging. It reduced railway-related ‘incidents’ involving children by 21%.
https://www.youtube.com/watch?v=IJNR2EpS0jw