A firefighter holds his helmet during a gust of wind while using a water canon on top of a fire truck to try to protect buildings that were in the path of a fast-moving wildfire burning through the Rancho Bernardo neighborhood of San Diego, California October 22, 2007. Fast-moving wildfires raged across Southern California on Monday, forcing at least 250,000 people to flee their homes and destroying hundreds of buildings as desperate fire officials called for help from other states. [Agencies]