Still - riding without lights, risking getting hit by a car... not sure what is worse...
Its all about trade-offs with competing risks.
On the morning commute I'm lit up normally, blinking head- and tail-lights. In my experience most all the bad people are still asleep at that time, sleeping off whatever they were doing the night before (after all, it ain't like they have jobs).
But I worry far more about getting hit in the crazy morning rush than I ever do riding home.
Mike