A friend of mine rides a road bike with clipless pedals. He offered to let me try it out since we have the same shoe size. He even held the bike up while I fumbled around learning to clip and unclip for a few minutes. Once I felt comfortable with getting one foot to release quickly, I was off, and fell. My friend told me even after mastering his clipless pedals he once fell right on the ground after coming to a stop when he forgot he was clipped in with rush hour traffic looking on.