I invented my own personal duathlon. Starting at my doorstep. It's .8 miles from my door to the pool, I swim, and then run back .8 miles. I'm a slow runner so this short little distance is a good time for me to work on picking up the pace. In my Vibrams of course.
Until tonight. I'm running faster than usual, on more pavement than usual, and downhill. Add that all up and you've got my toe caught under my foot, some blood, and a torn Vibram. I might try sneakers tomorrow.