Reminds me of a time in 2010 when I was riding home from work. It was late, I think 10pm, so fully dark and the battery in my light was just about dead. So, I didn't see the very large dead deer on the side of the road until I was right on top of it. At this time, I was riding around a brakeless fixed gear (something I gladly no longer do) so stopping quickly wasn't going to happen. I was thankfully not going terribly fast given my lack of lighting, but still fast enough to be problematic in this situation. I got the front wheel off the ground to roll up onto the carcass but the back wheel hung up so down I went. I and the bike were unhurt, still annoying. Also annoying was recalling at that time that I had seen the very same dead deer on the way into work 9 hours earlier. Guess it was a low priority for the city to take care of.