[okie]

One of the best marksmen in the FBI was passing through a small
town. Everywhere he saw evidence of the most amazing marksmanship.
On trees, on walls, and on fences there were numerous bull's-eyes
with the bullet hole in dead center. The FBI man asked one of the
townsmen if he could meet the person responsible for this
incredible accuracy.

They were introduced and the FBI man quickly realized that man was
the village idiot.

"This is the best marksmanship I have ever seen," said the FBI man.
"How in the world do you do it?"

"Nothing to it," said the idiot. "I shoot first and draw the circles
afterward."