My first boo-boo today. Riding out of my neighborhood,saw my neighbor, needed to tell him something whipped into a u-turn, then up his steep driveway, realized I was clipped in and in high gear. Attempted to gear down too quickly, popped the chain, still clipped in, now at a standstill realized I was going over, chose the right side, used my forearm, got a scrape and bruised pride. Luckily my helmeted head or other body/bike parts didn't hit the ground.