I will give an example. If the person is a stranger to buy drugs abroad. People will sell it to you or not?. I need some time to meet and get to know and make friends with sale man gemstone traders in the market . He sold a beautiful gem. You want the best price you have to go there often to know people within the stones there. Then they took stones beautiful offering to you. If you are a stranger, you will not see it. I'm sorry. Face it, you are a foreigner to stay in Thailand for a long time, but he also saw people in the area as a tourist you do. The other is pretty safe. Part of the show just plain storefront.