I killed my share of cotton mouths near Pierre Part, Louisiana(Bayou Corne and Lake Verret) while in grad school at LSU. They would strike a hit from a .22 if it was too far back, swim toward a boat and look for a fight, and weren't afraid to drop down for a visit if you're alligator hunting in the dark. Snakes are great from a distance, but that's about it for me! These African snakes as y'all describe them, well, y'all are braver than me!