Brian Knowlton and his wife woke up to a nightmare many of us dread. They shot upright at the sound of breaking glass, then heard rummaging in the house. Brian got out of bed, opened the bedroom door, and found himself face-to-face with the intruder--a 275-pound black bear. "He slammed the door right away," his father told the Anchorage Daily News. Then he got out a .40-caliber Glock, fired 9 or 10 shots at the bear, and called the authorities. When police arrived, they found the bruin dead in the bathroom, with four bullet wounds.