Ric, thanks for the info. as always. I looked at the pics. I'm pretty sure the snakes I have are just water snakes. While they do hold their mouths open, I think they're just wanting me to throw a dead shiner to them. They don't have any fangs.

One of my friends picked one up, and it excreted some kind of stink onto him.

We pretty much just deal with them. When you see one, you can be sure that there are at least five more in the near vicinity.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."