When I was in high school, I was coasting down a down hill, probably 20 mph, when a squirrel darted in front of me from the right side of the road. I was startled and nearly jumped off the bike, and swerved left, which turned out to be the wrong direction. The front wheel ran over his tail as he was running to my left, and his tail got pinned, so his body snapped back and bounced off the front wheel spokes. I'm not sure if the back wheel got him or not, but when I looked back, he was running across the road the same direction he started, so I guess he was ok. Wow that was an adrenaline rush.