my uncle had the best solution for this he had a spot light fitted to the roof on the back of his van so when off loading stuff at night down his yard he could see what he was doing. He told me this story about a bm driver who sat up his hole with the fogs on for about 4 mile then he started flashing the lights at him. My uncle got so pissed off by this stage he flicked the switch an blinded the cunt back lol