By day they stand in front of eager, young Thais, imparting their knowledge of their mother tongue, educating Thailand’s leaders of tomorrow. By night, these two middle-aged foreigners linger in a dark Thai soi, waiting for the call that will see them race around the streets of Bangkok at breakneck speed. What they do is dirty, and at times dangerous, but they love it and pursue it with a passion. It’s what drives them and nothing else makes them feel more alive. They are the two white faces in the Ruamkatanyu Foundation’s rescue service.