There are many reputable tuk tuk drivers in Bangkok, but occasionally you come across one that you can't trust. Some offer rides for an unbelievably low price to drive you around the city, but then they stop at tailors and gem shops along the way to collect gas coupons from the proprietors. On the opposite end of the spectrum, some try to overcharge foreigners. And if you're headed to a famous Buddhist temple, some tuk tuk drivers may tell you that it's closed due to a national holiday and then try to take you to another destination desperate for your business. Sometimes it's difficult to spot an unscrupulous driver, but the owner of this three-wheeler is clearly warning potential customers that he's up to no good.