I've fallen because I was exhausted mentally or physically and couldn't get my foot out period. I've fallen because some jerk cut me off when I was coming to a stop and I tipped over on the clipped in side. Same happened trying to avoid a speeding car at an intersection under heavy braking. I've fallen because I lost traction.

But I don't think I've really ever fallen because of the pedals themselves.

Voted yes though because I think these apply in the spirit of the poll question.