Happened to me as well on my very first trip to Bangkok in 89 on the second day. At the time I thought I was the first person to ever be scammed as in those days there was no internet! I even considered cutting short my trip. But then I found Nana Plaza and felt better and met a Dutch bloke in Pattaya who I told the story to and he laughed and said it happens to lots of people! All good advice in the thread. It should be required reading the day before a trip just to remind oneself of what "might" happen.