They walwe as doon two pigges in a poke;
And up they goon, and doun agayn anon,
Til that the millere sporned at a stoon,
And doun he fil bakward upon his wyf.
– Geoffrey Chaucer
The Canterbury Tales, The Reeve’s Tale. During their fight Symkyn and Alan are said to wallow like two pigs in a poke. Up and down they go until the miller stumbles on a stone and falls backward upon his wife.