A group of primary school children go on a trip to Ascot races to learn about horses.
When it's time to go to the toilets it is decided that the girls will go with one lady teacher and the boys with another. The teacher assigned to the boys is waiting outside when one of the boys comes out to tell her that none of them can reach the urinal.
Having no choice, she goes inside and helps the boys with their pants and begins hoisting the boys up one by one, holding their willies to direct the flow.
As she lifts one boy she can't help but notice that he is unusually well-endowed. Trying not to stare she says,
''You must be in year four.''
''No love, I'm riding Silver Shadow in the 2 15!''