So this evening I was following (at a distance) a Tonka Toy pickup along a road near WUNderland. We reached a long straight and I was idly contemplating an overtake when an oncoming car appeared. I instantly spotted the fact that he was on main-beam, and that the lights were those bloody awful HID jobs. Matey in the Tonka Toy gave him a quick flick of main beam as a reminder. To no effect. So he gave him a slightly longer one. No response. And then... The Whole Fucking World Lit Up. The entire front end of the Tonka Toy must have been spotlights. You could have seen it from the moon. I swear the truck slowed slightly under the pressure of departing photons. The oncoming wanker actually stopped (quite quickly). I laughed. A lot. Shortly afterwards I passed the Tonka Toy and gave him a *big* thumbs-up. Oddly enough, his dipped beams were totally inoffensive. :^)