A friend told me he used to do this in Thailand:
He said there's these guys that hawk porn DVDs and they have print versions of their catalogs they carry around with them to show potential customers. Of course, being a tourist, he got a lot of offers and eventually got tired of it. Apparently in Thailand, getting angry in public is a severe loss of face, so he found a better way to get his point across.
He took one of the catalogs a guy offered him and kept it with him for the next time he was approached. When the next vendor approached, he looked over the guy's catalog and said, "Not bad. Now, DO _YOU_ WANT SEXY MOVIE?" and pulled out the brochure from the previous seller. The guy got a huge slam out of it, as practical jokes are loved in Thailand.