Was hit by a whitetail once, knocked me off the bike and jumped away. Luckily no damage except for my pride because my girlfriend at the time couldn't stop laughing. I see snakes on the trails around here, but haven't had to dodge one on the road yet, they are all over the trails though. We tend to get a lot of uncaged dogs who love to chase a bike rider, deer, skunks, squirrels, wwwabbits, and buzzards feeding off roadkill.