First time I went down, I fell into the # 3 lane in front of traffic stopped at a red light. I thought the light was about to change so didn't click out but apparently they change the sequencing on weekends.
Second time was at a light. I'd stopped with my right foot on the ground and left still clicked in. My wife pulled up on my right which had her partially blocking the turn lane. Without thinking, I tried to move to the left, lost balance and went over.
My wife, on the other hand, has yet to take a clipless fall.