Here's a variation I've seen: bad guy finds jewelry (necklace/ring) near you, making sure you've spotted it too. Then you get in an argument for ownership. He s

Here's a variation I've seen: bad guy finds jewelry (necklace/ring) near you, making sure you've spotted it too. Then you get in an argument for ownership. He suggests splitting the cost - he would leave if you pay him, in cash, half the estimated price of the expensive-looking but fake jewelry. And then, of course, he vanishes.