Two female teachers took a group of  students from grades 1, 2 and 3 for a field trip to Flemington  Racecourse.

 When it was time to take the children to  the 'bathroom', it was decided that the girls would go with one teacher and the  boys would go with the other. 

The  teacher assigned to the boys was waiting outside the men's toilet when one of  the boys came out and told her that none of them could reach the  urinal. 

Having no choice, she went inside, helped  the little boys with their pants and began hoisting them up one by one, holding  on to their 'wee-wees' to direct the flow away from their clothes and shake them  dry.
As  she lifted one boy up, she couldn't help but notice that he was unusually well  endowed. Trying not to show that she was staring at his equipment the teacher  said, 'You must be in Grade 3?'
'No  ma'am', he replied. 'I'm riding Black Caviar in the next race, but I really  appreciate your help.