I already posted this in the "2011 Imprezas and Beyond!" thread, but thought it more appropriate to place here.
I agree with Landin2010: AWD really doesn't make you a better driver! Seriously, though, it just happens, even to the best of us.
Still, these bumpers seem to be brittle as heck, despite abuse in -10+ weather. My Forester bumper fell off several times on my friend's steep driveway, but never cracked. The bumper on my 2011 seems kinda wimpy in comparison.