The third-grade teacher was teaching English and repeated for her class: "Mary had a little lamb, whose fleece was white as snow, and everywhere that Mary went, the lamb was sure to go." She explained this was an example of poetry, but could be changed to prose by changing the last line from 'the lamb was sure to go' to 'the lamb went with her.'
A few days later, she asked for an example of poetry or prose. Little Harry raised his hand and said, "Mary had a little pig - An ornery little runt. He stuck his nose in Mary's clothes and smelled her little . .." He stopped, turned to the teacher, and asked, "Do you want poetry or prose?"
"Prose." the teacher said weakly.
So, Harry said, ". .. Knees. Poetry would have been Toes."