See, it happens to all of us! If you've ever fallen off your wedges or gotten a heel caught in a sidewalk grate, then you can feel for this model at the Matthew Williamson Fall 2007 Collection show at Bryant Park in New York City on Sunday. I haven't seen video of the snaffu, but it looks as if she pulled it off with poise. If she can avoid disaster, so can we! Hurrah! It looks like the shoes were ...