I swear I posted this earlier, but apparently gremlins do exist…
Too bad you have copper heads and not water snakes.
If anyone else reading does have water snakes: water snakes are often pretty grouchy, more likely to bite you, especially if you happen to be between them and the water. Even though it won’t kill you, it still hurts. They’re also very athletic, they may not actually jump but it sure looks like they do when they strike. They also do a thing where they flatten out their head so they look more like a copperhead. Basically they are the angry chestnut mares of the snake world.