Public-transport stations worldwide play music to discourage loitering and anti-social behaviour and deter crime inside stations.

At Parliament Station in Melbourne, it might be Fleetwood Mac if you’re lucky, but it’s mindless pop music on most days. They should be playing funk. At Penn Station in New York, it’s classical music; same as at Euston Square Station and 64 other stations in London, and it had an effect on crime rates:

Initially set up in 2007, the initiative proved successful, within 18 months, robberies dropped by 33 percent, assaults on staff were down 25 percent and vandalism by 37 percent.