Went on a 20 miler last night. Got home and as usual part of my cool down routine is to make a few circles in the drive way. Well - our cat ran in front of me, I swerved, and front wheel went off driveway cement. We've had lots of rain and wheel sunk about 2 inches. Down I went. I was STUNNED as to how hard my helmet hit the concrete. Wife screamed, and came running over. I just lay there for a few seconds. Got serious road rash (Driveway Rash?) on my left leg and left shoulder, Had a headache today (minor) and now a scratched helmet (not cracked). I was probably only going 5-7 mph but I sure hit the driveway hard. If I wasn't wearing my helmet I would have been in serious trouble! BTW- Bike OK, I use speedplays and was clipped (another mistake) It went up in the air, and then back onto the grass.