Taking a taxi in Bangkok can have its highs and lows but you must always make sure you adhere to certain unspoken rules. First and foremost, avoid the rush hour, this is an insanely busy city and you do not want to be in the crosshairs of a massive delay in where you need to be. Secondly, make sure you insist that your driver turn his meter on, and if he refuses, simply hail another taxi. The most important of all, keep an eye on your valuables, as accidentally leaving something behind in a taxi that you might never be able to find again is not the most pleasant of experiences.