Little Jimmy and Janey - primary school rivals, were having a game of one up-manship in the barn.

Jimmy did 20 pushups.... 'I bet you can't!' he shouted.

Janey then did 30.

Jimmy, annoyed, climbed to the highest point on the barn and jumped off, narrowly managing to land on a hay-bale that broke his fall.

'I bet you can't make that jump!' shouted Jimmy.

Janey proceeded to climb to the top and make the exact same jump and landing.

Jimmy, really flustered now, pulled down his pants and showed off his 'little jimmy'.

"Bet you don't have one of these!!' Jimmy taunted.

Janey, realizing he was right, began to cry and ran home to her mother.

A little while later, Janey came back to the barn with a big grin on her face.

'What are you smiling at?' asked Jimmy - wondering why she was suddenly in such a good mood.

"Because", Janey said, "My mommy told me that with one of THESE i can get as many of THOSE as i want!"