By 6pm it is pitch black outside. Clouds or mist routinely obscure the moon. It is dark, cold and quiet in the house. Through the plumbing that I'm working on I can hear the haunting drips in the septic tank. Like listening to the bowels of a cavern from its entrance. I have set a tarp out to collect rainwater and direct it into the empty tank. Even though the tank is concrete I got conflicting reports as to whether or not it would pop up out of the ground: a boat floating in a sea of mud. To be safe I'm directing water into the 1000 gallon tank.
Now that the house is essentially water tight, I thought I would be working late into the night on various aspects of the interior. This as proven not to be the case. By 7 or 8 pm I am done for the night. 500 watts of light (actually a 65W fluourescent) is just not enough to keep me from wanting to hibernate. By contrast, I could stay up to the wee hours working on this computer. When it comes to physical labor, I am definitely diurnal.