I guess I can't stand being asymmetrical.
I fell last week because I forgot which foot I stop on and unclipped the wrong foot and ended up with a scraped right knee. This morning I fell for some unknown reason...I unclipped my right foot, and am pretty sure I leaned to the right to put the foot down, but ended up falling over to the left, scraping my left knee and loosening the quick release lever on my back wheel. So when I clip my left foot back in to start riding again (yes, without checking the bike out), I promptly fall over again.
Finally figured out why the back wheel would not move (I've learned how to use my eyes) and got back on the road. Had to cut the commute short to make it to work on time. Just glad it wasn't anything worse than a mildly bruised ego.