While boating on our pool of the Ohio River (Marietta pool) we were floating minding our own. Friends are pulling up to us for a tie up and they stop and one shouts out; "You have a snake crawling up the side of your boat". Sure nuff, one had been there. The shouting or waves from them pulling up got him to vamoose. But what a shock it would have been had he made it up and over the edge.
We have 50 acres and I've got over my fear of snakes. I will pick them up with gloves on. But one coming onto our boat would have freaked me out. Glad he didn't make it onboard. Never seen anything like it before or since then. We see snakes swimming once every year or two but that's about it.