Thow seyst we wyves wol oure vices hide
Til we be fast, and thanne we wol hem shewe –
Wel may that be a proverbe of a shrewe!
– Geoffrey Chaucer
The Canterbury Tales, The Wife of Bath’s Prologue. The Wife of Bath accused her first three husbands of drunkenly saying that wives hid their vices, until they had trapped their man into marrying them. And then they showed them. That’s the proverb of a scoundrel, she lashed at them. But she is lying in order to control her husbands, as they didn’t say any of these things.