After observing what a great job our generation did at preventing forest fires, avoiding downed power lines and taking bites out of crime, it's no wonder current ad councils feel today's youth should also be nurtured by such valuable TV messages. However, sweeping in behind the likes of Smokey, Louie and McGruff, creators of the modern public service announcement have a tough act to follow. They're fresh out of animal characters, but they offer the next best thing -- "Friends" star David Schwimmer, staring solemnly at the camera, asking the youngsters of the nation if they like being judged by the way they look. "I don't," he answers, with an absurd look of deadpan earnestness. Gee thanks, Ross. We want our lightning bug back.