OK, this statement is simply not true. But this triathlete sucked at running on Wednesday, when she ate it so bad running down a concrete street that her hip swelled to the size of a softball, and somehow her knee, palms, elbows, and shin got into the action.
Noting a man walking up the sidewalk approximately 15 seconds into my run, I decided to look cool and make a quick glance behind my right shoulder before crossing to the other side of the street I live on while keeping up my pace (established approximately 2 seconds earlier). I looked over my shoulder, and took a step with my right foot and WHOOP! Like stepping on a banana peel, my foot slid right out from under me, and I landed on my right hip and hand and knee and shin. As common courtesy between men and women doesn't seem to exist anymore, the man walked right on as if he hadn't seen anything while I lay in the middle of the street. Nice.
I got up and found what I had slipped on: a giant piece of 1/2 inch thick plexiglass some punk left in the road. Nice. I put it on a fence, then continued my run and picked up the road trash on my way back so I could show it to my coachancé, and so I'd have a specific object to be pissed at, other than myself.
Moral of the story: Look before you step, or else you can get road rash that looks like you crashed your bike--except without the harrowing tales that accompany bike crash wounds. AND if you see someone fall, at least ask if they're OK. Especially a week before Christmas. Geez.