Posted by Stgcoach on November 19, 2003 The phrase P's & Q's
came form early United Kingdom. Often fights would occur from
the rowdy drinkers in the pubs. When a fight was about to break,
the bartender would shout to the patrons to watch their Pints
and Quarts. (P's & Q's) Taken as a warning to the patrons in the
establishment , through time has been taken as just a warning in
general, as in manners and behavior.