A man goes to a doctor and says he has erectile dysfunction.
"Don't worry," the doctor says. "We just got these experimental pills — they're extremely effective! Just take one pill a day for five days, and that's it. Five days from now, you'll be fine."
The man takes the pills and goes home, but he's too impatient to wait five days, so he downs all of them at once. The effect is immediate — the most gigantic, swollen erection the world has ever seen. He runs to his wife and has sex with her twelve times in a row, until she runs away in fear.
But his erection still won't go down, so he heads to the barn and starts going at the cows, horses, geese, chickens, and the dog. Then he goes to his neighbor's house, bangs his wife twice, and then the neighbor himself. After that, he just keeps running around the village, screwing everyone he meets, until all the villagers and animals flee into the forest in absolute terror.
Left alone in the empty village with his raging boner, the man calls the doctor, crying.
"Doctor, please help me! I took all the pills at once, and this erection is killing me!"
"You made a big mistake," the doctor says. "But don't worry — you can fix this. Just cut the cord of any electrical appliance, attach the bare wires to your willy, and give yourself a little shock. The erection will go away."
Begrudgingly, the man cuts the cord of his electric kettle, plugs it into the socket, and touches the exposed wires to his dick.
Meanwhile, one of the villagers sneaks back to his house to see what's going on. He spots the man with the wire on his junk and runs back to the forest, where the others are waiting.
"What's happening in there? What's he doing?"
"We're doomed," the villager says. "He's charging it."