My response worked this past trip, because it is true, as much as I am there if someone still tries to sell me the stuff I say "You must be new here?" They look startled and oddly enough start explain that they ARE new on the beach. So I say ok remember the face and I'm a tour guide so would YOU like to go on tour with me??? We both usually have a good laugh. The next day the only reason that person will hail me up is to say hello. These days the most I get on the beach is a "You Bok Mon"...or "Welcome home"