Do you leave lights on for your dog if you go out at night?

My place isn't huge, so I really don't think that leaving lights on is necessary. We have these nightlights that automatically turn on in the dark that helps. They've got this little sensor that can detect how bright it is out and turn on accordingly, the darker it is, the brighter it gets. We have a couple in key areas around the house so that us humans can navigate around the house. I imagine that our dog shouldn't have any issues as well, seeing as her night vision is probably better than mine. I don't see her stumbling around with her arms outstretched afterall!

That being said, I do recall one time where I think she missed a step on the stairs going down. I think she thought she was on the ground floor but still had 1 step to go - heh, I couldn't help but laugh. She was alright though so I'm not as cruel as I sound.