The time of year has arrived when deer flies appear to torment anything that moves. Like the fighter planes circling King Kong atop the Empire State Building, these evil insects attack in numbers, seeming to take turns diving in to deliver painful bites. They are fast and they are relentless. The discourage me from spending any time in the woods or along the river, where they make their domain. I hate them. The dog hates them. They might even hate themselves.