No, if you have empty space you can't justify, why aren't you filling it? 12 people in 3 cars use a lot less resources than 12 people in 4 cars. I already have made arrangements that if for some reason my hilltop has to evacuate, my plan is to go out on a certain route. There are two people who are on my evac route who know that if I wait too long, I leave without them, but they have a decent time window. One has a four mile hike from the main road (about a mile if he goes cross country), the other takes me a half mile out of my way when I'm almost to my folks.

Planning... Not just for chess any more.