Yeow is right, Superman. When I was a senior at Western Washington University in Bellingham, we had a naked competition which laid bare the hazards of such activity. I Suppose it is what people do up there to brave the cold, or something.
We had just won the District team championship in track (we beat Simon Fraser U., among others), and a dozen of us decided to contest the first (and last) annual midnight naked half-mile at Civic Stadium. It was a six-beer minimum to enter (honor system...I was qualified). I finished third overall, ran 2:11 for 800 meters in the pitch-dark of night, butt-naked and drunk as a skunk. A buddy of mine probably would have won, he was leading through the first turn. But there was a hurdle in lane one and it was too dark to see it. He racked himself pretty bad on the hurdle.