I asked my brother in law today if one would be safe from the casual marauder party going door to door to every residential and Business Building during TEOTWAWKI if you settled into the 25th floor near the roof of a High Rise Building where the power was turned off either by you or because there is no electricity. He said if they can't detect any sign of life that high in the building they in all likelihood won't bother to walk up that high. Do you agree? This question is partially hypothetical because I don't know if you can have Solar Panels on the Roof hidden. Also assume that you have water/food supplies for at least 6 months.