Although not my first memory of biking, I remember crashing in fourth grade riding to school. The older kid next door slid his gym bag across the road at me when I rode by, and he hit my front wheel and down I went. I know I could locate the picture of me looking really sullen, with a swollen face, cut lip, and my right hand in a cast. I can still feel the bent metacarpal.
Thanks for bringing back the memories, Red Baron. And guyblerhaus, that's a great picture. Remember those book racks that clamped down with a spring to hold your school books?