Deep in the hills of Kentucky, a hillbilly's wife went into labor in the middle of the night, and the local doctor was summoned to assist in delivery.  Since there was no electricity, the doctor asked the hillbilly to hold the lantern.

Soon a baby boy was brought into the world.  "Don't put that lantern down yet," the doctor said. "I think there's another one in there."  Sure enough, soon a baby girl was appeared.  "Hold that lantern a little higher, there's another one coming," said the doctor.  Within a few minutes, the doctor delivered a third baby.
"Keep holding that lantern, I believe there's one more in there," the doctor remarked.

The hillbilly scratched his head and said, "Maybe I should turn off the lantern, I think the light is attracting them."