While fishing rip rap last year with a buddy I had one get in my boat. My friend who is a large man, six foot five two hundred sixty pounds, screamed like a little school girl. I noticed the snake coming towards us, the water snake (non venomous) came in through the transom just climbed on the motor and wiring and came right in. My friend was on the absolute very tip of the bow haha, I grabbed my flipping stick (pun intended) and flipped his ass back in the water. He came right back in, same way, I flipped him back in, but since my friend threatened bodily harm to me, we had to leave, and not give the snake a third chance lol.