Zombie threads are fun. I got taken down by a duck once. It became startled when I rode by and it flew right . . . into . . . my . . . rear wheel. It took me down fast. I was picking out duck feathers from my campy NR RD for a while. The front wheel was so bent up from the crash that I had to pop off the front brake so that it would pass through the frame after I "trued" the wheel by slamming it into the pavement for a while. And then I still have around 10 miles to ride to get home.