Writing this from my hotel room in Bangkok.
Variation on the Taxi scam: had our hotel call a taxi for us to the Grand Palace. About 5mins into the trip the driver says bad accident, he heard on the radio, much traffic, take 3 hours to get there. I take you to boat, no traffic. Of course we tried to find alternatives but in the end language was the issue.
He dropped us in a Soi on the river with travel agents booking tours. I clocked it straight away, and took my wife by the hand and walked past a line of others either leaving angrily or being dropped off.(The real pier was 300m away) As we were leaving a young couple told us they were charging 2000 baht for tours.
When we got to the real pier another couple tried to sell tours, then two guys waving red/green flags told us pier is closed and several boats went past. Frustrated we walked the additional 500m to the next pier and paid 16 Baht each for the boat.
We were lucky as we were only scammed out of 20mins of time…That said the other 3 taxi drivers we have had have been friendly and professional. Will I take a taxi tomorrow? Probably.