When Christie Brinkley, Minka Kelly and Rose McGowan stumbled at Wednesday's Heart Truth Red Dress Show, then two other models nearly went down at Richard Chai the next day, we were reminded that model topples have become a Fashion Week tradition, a rite of passage, and judging by the caliber of women who have famously gone down (see: Naomi Campbell), a good omen of sorts. To celebrate the official start of the Fall 2012 collections, let's take a look back at some of the most classic runway t...
