Rossk26 !highbeams theory makes perfect sense if:-
i) You have a private road with your own key to open the gate at one end and you lock the gate immediately behind you, with no side roads attached to it and your house at the end of it. No one else lives in the house or has access to the gate key.
ii) There is an electrified 15m high fence either side of the road to keep away any animals from crossing the road.
iii) You are learning to drive said road eventually with a patched eye or blindfold.
iv) It never ever rains.
I was going to say that it therefore would clearly work in Jurassic Park as a real life applicable scenario. Just realised it rains in that though. Damn...