Eyes were popping at Checkpoint Charlie today as a band of goofballs peddled onto the scene riding a giant Keg-Cycle. No, I'm not kidding. They were peddling a giant bike with a keg of beer at the helm and a full-service bar down the middle and -- as if that weren't zany enough -- they were singing the Beer Barrel Polka, to boot. "Sheesh," I said to my colleague, "What do they do around here for Octoberfest, paddle a U-boat down the Autobahn?" My colleague, a Dutchman, assured me that bikes like this are completely normal around here. I guess this must be the German version of a Biker Bar ...!