Ride the rural roads that I commute on and we'll see how funny it is when you go down because you hit a tree branch or a patch of fallen black walnuts or hickory nuts, or a pothole, or someone's black garbage cans left on the shoulder for pickup, or roadkill. There are no other bike commuters out there while I'm riding to work in the dark, so why would I point my lights down where I can out ride them at 18 or so mph?