I was doing a borderrun to Cambodia in the surin border.I went to the market and i was offered vietnamese girls that i could take with me to a resort at the thai site I said no thanks.I heard later that a foreigner who said yes to this offer was taken in that resort and fined 20.000 baht.The girl wasnt fined at all.Im sure this have happened many times.This is a agreement with the pimp and the thai police.