I doubt there are any foreigners who come to Thailand with the expectation of ending up homeless and searching for food in bins. Unfortunately, this is the way things turn out for a significant number of people who come here. An article in yesterday’s Bangkok Post (Homeless Foreigners on the Rise) gave an optimistic estimate of 400 homeless foreigners in Thailand – I’d be very surprised if the number wasn’t significantly higher than this.
How Do Foreigners End Up Homeless in Thailand?