There seem to be no exceptions to the rule. A handbag dangling from a wrist or shoulder or even around ones neck is a tempting target anywhere in the world. Snatch thieves either operate on foot, motor cycle or bicycle, and are very adept. They will also grab valuables from open vehicles such as convertibles, or jeeps our through open car windows when a vehicle is stationary in traffic. Please take the usual precautions, and ensure that large amounts of cash, valuables, irreplaceable documents etc. are locked in the hotel safe - not kept in your handbag.
Tricksters come in a fascinating variety of shapes and sizes.
The truth is of course that real' local people do not go out of their way to speak to tourist in the street. If you go with him, or her, you do so at your peril. You may be taken sightseeing, then robbed, or coxed into a game of cards where it seems you cannot lose. Most commonly, you'll be taken to a ship where the sales techniques are especially convincing, even to the most skeptical people. Many visitors have lost very large amounts investing' in precious stones.