Yes, I was wondering what would have happened if I'd had a clipless setup on my bike rather than toeclips when I had my tumble yesterday. After my knee hit the ground as far as I can tell I was pretty much thrown off the bike and rolled down the road. Nasty graze on my knee from the original contact, but all the other knocks and grazes after that were minor. I wonder if it would have been worse if I had been more securely attached to the bike?