At first, Ted Breaux dismissed the urgent warnings on TV and radio. He even ignored the sirens that started blaring Saturday afternoon. "The last two times they evacuated the city, I stayed," says Breaux, 39, a chemist and environmental microbiologist. But when he woke up on Sunday, August 28, the hurricane had become a Category 5 and was still bearing down on New Orleans. He decided it was time to get out of his house on the floodplain just south of Lake Pontchartrain. He packed his Mitsubishi Lancer Evolution with all the essentials: clothes, toiletries, a laptop, some World War II rifles, ammo, and $15,000 worth of absinthe.