Blame our shopping illness: This morning’s jolt (besides scaring the bejesus out of us) made us think of … yes, shopping. Apparently, about 83 percent of Bay Area residents aren’t prepared for a disaster, says the Red Cross. If you’re one of those 83 percent (we’re guilty), then there’s no better time than now to stock up on items for your emergency kit. (Luckily, they make really cute hand-crank radios.) And after you’ve done your responsible deed, reward yourself by hitting up some can’t-miss sales.