There is a factory in northern Minnesota that makes the Tickle Me Elmo toys. The toy laughs when you tickle it under the arms.
Well. one day, Lena is hired to work at the Tickle Me Elmo factory and reports for her first day at work promptly at 8:00.
The next morning at 8:45 there is a knock on the personnel managers door. The foreman throws open the door and begins to rant about the new employee.
He complains that the new employee is incredibly slow and the whole line is backing up, putting the entire production line behind schedule.
The personnel manager decides that he should see this for himself, so the two men march down to the factory floor. When they get there the line is so backed up that there are Tickle Me Elmo's all over the factory floor and they're really beginning to pile up. At the end of the line stands Lena surrounded by mountains of Tickle Me Elmo's. She has a roll of plush fabric and a huge bag of small marbles.
The two men watch in amazement as she cuts a little piece of fabric, wraps it around two marbles, and carefully begins to sew the little package between Elmo's legs.
The personnel manager bursts into laughter. After several minutes of hysterics he pulls himself together and approaches Lena....
"I'm sorry," he says to her, "but I think you misunderstood the instructions I gave you yesterday...."
"Your job is to give Elmo two test tickles."