Do you drive your car at night with the lights off? Why not?

I ride year round and in the pre-dawn dark frequently. MagicShine 3-head on my commuter bike and a NiteRider 650 on my helmet. I have other light configurations on my other bikes. Yes, I like to be seen and to see obstacles / debris before hitting them.

I wouldn't consider riding at or after dusk with no lighting. That's a non-starter, if for no other reason that I take away some portion of the contributory negligence aspect of a fatal encounter with a car. My estate could potentially benefit in a suit...