So, today I stopped in at a local bike shop....As I was viewing the various products a guy rides up on a Felt that he was obviously test riding. When he gets off of the bike he slips (wearing road shoes and pedals) and whacks his knee on the concrete. At first it looked like a normal slip. He stood up..dusted off his knee and entered the shop with the bike. A couple of minutes later, as I was still browsing, I hear this loud noise and turn to see the same guy falling backward and pulling a display down with him. He was out cold and his head hit the concrete floor and blood appeared. He was out cold for at least 10-15 seconds. When he came to, the fire truck and ambulance was there...but it seems he was ok....wow...what a day. Not your average visit to the lbs.