Tell me about it.
Don't get me wrong, I don't really care for poisonous snakes, myself; but to remove another creatures "right to live" seems a bit excessive to me.
Poisonous snakes are exceptionally well designed rodent eating machines. A guy I met living in Texas had killed a huge rattlesnake that was on his rear deck, and he sliced it open to see what was inside. The snake had 7 rats, 4 from the current evening, 3 from the day before.
