(Read fast. This one may be bleeped.)
A group of 3rd, 4th and 5th graders, accompanied by two female teachers, went on a field trip to the local racetrack (Churchill Downs) to learn about thoroughbred horses and the supporting industry (Bourbon), but mostly to see the horses.
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 room 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 then began hoisting them up, one by one.
As she lifted one, she couldn't help but notice that he was unusually well endowed. Trying not to show that she was staring, the teacher said, "You must be in the 5th grade."
"No, ma'am, " he replied. "I'm the jockey riding Silver Arrow in the seventh.