Today's Question - In the old caution, "mind your P's and Q's", what are P's and what are Q's? Also what is the assumed origin?

Reveal Answer Corner Answer - The adage "mind your P\'s and Q\'s" are thought to have sprung from the wifely admonition to husbands sent on errands near taverns to - "Mind your Pints and Quarts!" (As in - I only ordered two pints, dear, but he must have served me quarts.)

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