"Spinster Schoolteacher" joke
A spinster schoolteacher took her fifth-grade charges on a field trip to a country fair. There was a race track on the grounds and she asked them whether they would enjoy seeing the horses. The children enthusiastically exclaimed they would, but as soon as she got them inside the gate, they all requested to be taken to the lavatory. She accompanied the little girls, but sent the boys to the men's room alone. They trooped out almost immediately and announced that the facilities were too high for them to reach.
The situation was an awkward one, but after looking about to make sure she was unobserved, the teacher ushered the boys back in. She lined them up before the plumbing and moved methodically down the line, After lifting several, she came to one who was unusually heavy. "Goodness," she exclaimed, "are you in the fifth?" "Hell no, lady," came the startled reply. "I'm riding Blue Grass in the third."
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