Manners

Prig offered Pig the first chance at dessert,

So Pig reached out and speared the bigger part.

"Now that," cried Prig, "is extremely rude of you!"

Pig, with his mouth full, said, "Wha, wha' wou' 'ou do?"

"I would have taken the littler bit," said Prig.

"Stop kvetching, then it's what you've got," said Pig.

So virtue is its own reward, you see.
And that is all it's ever going to be.

"Manners" by Howard Nemerov, from The Selected Poems of Howard Nemerov. © Ohio University Press, 2003.