There is a toy factory in Northern Minnesota that makes the "Tickle me Elmo"toys.

The toy laughs when you tickle it under the arms. Well,Lena, a slow but very dependable lady is hired at the Tickle Me Elmo factory and she reports for her first day promptly at 8AM.
The next day there is a knock on the Personnel Manager's door. Theforeman throws open the door and begins to rant and rave about thenew employee. He complains that she is incredibly slow and the whole line is backing up, putting the entire production line behind schedule.
The Personnel Manager decides he should see this for himself. The two men march down to the factory floor. When they get there, the line is so backed up that Tickle Me Elmo's are all over the floor and they are 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 red 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 begins to carefullysew the little package between Elmo's legs.
The Personnel Manager bursts into laughter. After several minute of hysterics he pulls himself together and approaches Lena. "I'm sorry," he says to her, barely able to keep a straight face, "but I think you misunderstood
the instructions I gave you yesterday. Your job is to give Elmo two test tickles."