All I remember is a guy right in front of me on the ground all of a sudden, perpendicular and blocking my path, so I just rode into him (no time to brake or swerve). Never felt anybody bump into me, just saw the guy flat on the ground and I had nowhere to go but over him. I don't know how he fared, hope he was less injured than me or Dr. Bob regardless of whether he caused the crash. Shlit happens in cycling, nobody does stuff like that intentionally.