As I watch the taxis, doubledecker buses and lorries navigate the congested, narrow roads here in England, I am reminded of how differently people drive in various parts of the world. We also noted that the most important part of a car in many parts of the world is the horn. The tires may be threadbare, the doors might be missing, and the windshield totally crazed – but none of these would phase a driver as long as the car has a working horn. There is a complete horn vocabulary as well …