This is one of those things that falls into totally random useless information but was interesting!
Today in the office I was asked if I knew the origin / meaning of the term "Minding your P's & Q's" , something my mother and grandmother used quite frequently - to me it meant be on your best behavior, mind your manners and be polite. I never gave a second thought to where the term originated. Until today! I must say there are times when Google is my best friend, within 20 seconds I had my answer here. . read on if your inquiring mind needs to know. I must say that I laughed out loud as I read, and I would have never guessed in a million years where it all started.