David woke suddenly in the mid-afternoon. The 56-year-old chef could hear commotion outside and scrambled up from his nap, finding his roommates on the roof of their shared home, holding garden hoses and spraying water on a raging inferno licking closer by the minute. “No, brah, we got to go,” he yelled. He couldn’t believe they hadn’t woken him up, or the dog who had been lounging in his room…