Research by a university in Milan found that putting a man in a Batman suit in a carriage on the city's underground had a positive effect on the behaviour of other passengers.

I'm sure it does. You only have to look at the effect it had on Councillor Murray's muggers in Only Fools and Horses to realise that Batman outfits are great at cutting crime.

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But I know this may sound a bit edgy, but I think there is another, more tried and trusted way, of improving behaviour, both on public transport, and........

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