All of us are old enough to remember cars, in which one controlled most devices by means of a switch, knob or button that one pressed, flicked or turned. Night or day, they were easy to locate, operate and – more importantly – one didn't have to take one's eyes off the road to do so. Then along came mobile phones, which people used when driving, often with disastrous consequences as it was necessary to look at the phone as one dialled or performed certain other functions. As a result, their use was banned while driving, with certain exceptions for 'hands off' devices, the lawmakers reasoning that taking one's eyes off the road to use the phone was dangerous. Quite so! But then along came touch screens, with which almost every car is now equipped and which one cannot operate without looking at the screen. How the hell did these ever slip past the nannies making the rules of the road? In my humble opinion these touch screens are quite the most dangerous component of the vehicle – unless of course you include all too many Thai drivers!