My oddest fall was probably just a failure to unclip ... except I really thought I had unclipped. It was in a group ride, just heading out of town, not in too tight of a paceline since we were still warming up and the road was a little rough. Someone up ahead went down, I don't remember why. He was fine. But in the confusion, I forgot I hadn't unclipped, and when I went.to stop, I keeled right over.