I hate water moccasins. They do fall out of trees. Many years ago when I was a freshman in college, I had a small glass torn ski boat and was at the south end of the Ortega river in the McGirts Creek off shoot. Lots of trees hanging over and one of those ****ers fell into the boat. The chick I was with screamed, I screamed like a little bitch, then beat it with an oar and threw it over board.