As soon as the taxi driver pulled out into Singapore's Orchard Road, he began to talk. Babble, actually.

Don't keep your wallets in your back pockets, he implored us. Why not? Less than two weeks ago, four Filipinos had been arrested, came the answer. For pickpocketing! It's true! the man insisted. And, he added darkly, this wasn't the first time. A Malaysian man had been caught doing something similar only a month previously.

Singapore was clearly going to hell.