For anyone who reads Pratchett or Gaiman, this quote about the British Monetary system from 'Good Omens' always made me laugh...

NOTE FOR YOUNG PEOPLE AND AMERICANS:

One shilling = Five Pee. It helps to understand the antique finances of the Witchfinder Army if you know the original British monetary system:

Two Farthings = One Ha'penny. Two Ha'penny = One Penny. Three Pennies = A Thrupenny Bit. Two Thrupences = A Sixpence. Two Sixpence = One Shilling, or Bob. Two Bob = A Florin. One Florin and One Sixpence = Half a Crown. Four Half Crowns = Ten Bob Note. Two Ten Bob Note = One Pound (or 240 pennies). One Pound and One Shilling = One Guinea.

The British resisted decimalized currency for a long time because they thought it was too complicated.

Terry Pratchett and Neil Gaiman
Good Omens