Met an old friend while taking a walk
My father attended a boarding school in the Arkansas Ozarks shortly before WW2.
One Sunday, having nothing much to do, he borrowed a rowboat on a local creek. Lovely warm day.
Until the cottonmouth dropped out of a tree into the boat, to share a ride.
So dad left the boat to the snake, swam to shore and walked back to school. (Fortunately for him, the boat hung up on a tree branch about a quarter mile downstream, and it was recovered by the owner.)
The snake apparently got bored, and left for more interesting pursuits.