Agree, Musket. People have tried to scam me in Boston; New York; Paris; St Petersburg; Dakar; New Delhi; Kuala Lumpur; Oslo, Los Angeles; Rio de Janiero; Jakarta; Cebu City; Milan; Beijing and Turkmenbashi, to mention just the places that immediately come to mind. I could probably triple the list with a bit of thought.

Maybe I look gullible but so far I've managed to avoid falling for any of them. Closest was probably the "found gold ring" in Paris, which I nearly fell for. I do tend to engage with people who approach me, rather than (sensibly?) ignoring them, but I'm usually on the watch for an "angle".