I consider Tuk-Tuks to be one of the worst aspects of Thailand. The drivers are often rude, they are noisy, they think they own the road and they try to rip you off for everything you have. Most foreign ex-pats in Bangkok will tell you the same thing, yet the Tuk-Tuk remains a symbol of Thailand. I will do almost anything to avoid taking a Tuk-Tuk, but there are some instances where you don’t have a choice.
When I first arrived in Bangkok, I was naive and thought of them as being somewhat charming, that was until I took my first trip in one. I was attempting to flag down a taxi, outside MBK, when the scourge of Bangkok’s streets stopped and picked me up. No price was mentioned and the trip was very short, when I disembarked I was hit with a 500 Baht fare (The trip was from MBK to Pantip plaza). Now, one thing you learn in Thailand is that you can never win an argument against a Thai, as the foreigner is always wrong and the police will invariably take the Thais side, so I paid the fare and vowed never to take a Tuk-Tuk again.
I did pretty well for about a year and avoided them like the plague, until yesterday that is. After a shopping spree near Khao San road, I was loaded with packages without a taxi in sight, so my girlfriend suggested we take a Tuk-Tuk. I flagged one down and asked the price for a trip from Khao San road to Pata (only about 2 Km) and was quoted a price of 250 Baht, so I declined. My girlfriend then told me to lay low while she flagged one down, her quote was for only 40 Baht, a much better deal. You should have seen the look on the drivers face when I emerged from the shadows, priceless!
So if you are ever in Bangkok, and absolutely have no choice but to take a Tuk-Tuk, then get a Thai to flag it down and get a price for you.