If you have killed that many you are lucky. The majority of people who get nailed by venomous snakes get nailed while trying to kill or catch one. If you ever see a pair of venomous snakes, especially cottonmouths, LEAVE THEM ALONE. They are known to chase people who have killed their mates for long distances and bite the crap out of them repeatedly. If you have ever seen the effects of large doses of hematoxic venom you know it isn't worth the risk. Snakes fear humans and are not likely to hang out too close to the house.