Some bosses don't believe in excuses. They have a zero tolerance policy for latenesses or absences, as if they're managing robots, and not human beings. If you've never worked in the food service industry, let me tell you a secret: snow days are often incredibly busy times at restaurants of all kinds. It seems counterintuitive---after all, if the roads are closed and temperatures are in the negatives, who's going to want to go out for a burger? What happens, though, is that people lose power an…