One night, Mikes' wife is about deliver. The local doctor is there in attendance.
"What d'ya want me to do, Doctor?"
"Hold the lantern, Mike. Here it comes!"
The lady delivers the child and the doctor holds it up for the proud father to see. "Mike, you're the proud father of a fine strapping boy."
"Saints be praised, I..."
Before Mike can finish the Doctor interrupts, "Wait a minute. Hold the lantern, Mike."
Soon the mother delivers the next child.
"You've a full set now, Mike. A beautiful baby daughter."
"Thanks be to..."
Again the Doctor cuts in, "Hold the lantern, Mike, Hold the lantern!"
Soon a third child is delivered.
The doctor holds up the baby for Mike's inspection.
"Doctor," asks the now clearly agitated Mike, "Do you think it's the light that's attracting them?"