I grew up in South Texas. I've been bitten by a cottonmouth. NO fun. When people ask what it felt like, this is my answer:

Take a large screwdriver and put the blade in a nice hot fire for about an hour.

Now, stick that screwdriver under a fingernail and leave it there.

Nuff said - I have a strong dislike for snakes. I have the scars to back up that statement. Not scared of them, just don't like them.