Fell off for the first time today.
A water bottle was being blown across the lane by the wind; I saw it and managed to avoid it. Until it was ricocheted back into my lane by hitting the tyre of the car in the next lane, and under my front wheel.
I managed to unclip and get my feet down as the bike went down, so all that hit the ground were the handlebar and pedal on one side. Unscathed.
Not one of the people at the bus stop ten feet away did more than glance in my direction. *rolleyes*