I was going for as many double entrendres as possible… I was considering basing the rhyme around stool, giving it more direct emphasis, but I couldn’t figure it out, went with something else.

Maybe fool and stool could be fruitful, if you’d like to uh, pick through my droppings =P

But uh, servants with stools or some kind of dismounting step type thing… that’s been a real thing throughout the history of any kind of nobility or elite class with horses.